PinoyDVD: The Pinoy Digital Video & Devices Community
Home Theater => Audio => Tubes => Topic started by: kenchix1 on Aug 25, 2009 at 09:44 AM
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Anybody here got or tried Yaqin tube amps ?
Reviews or comments please.
Thanks. :)
(Check it out at Ebay)
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The Yaqin MC-10L seems popular.
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hi, just registered today. i'm using a sakura av200t since dec 17 and have ordered my yaqin mc10 thru ebay. it will take 8 weeks to deliver. is there anybody there with experience with yaqin mc10 el34B?
eqp
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I almost bought this amp - seems like a good buy most specially from eBay.
Here's some links:
http://audiokarma.org/forums/showthread.php?t=176912
http://coolcatdaddy.blogspot.com/2009/01/yaqin-mc-10l-amp-initial-review.html
http://yaqin.slickpepper.org.uk/amplifiers/mc-10l
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hi, just registered today. i'm using a sakura av200t since dec 17 and have ordered my yaqin mc10 thru ebay. it will take 8 weeks to deliver. is there anybody there with experience with yaqin mc10 el34B?
eqp
Hi! Will delivery be door-to-door, direct to your address? Will there be any taxes/import duties to pay when the unit arrives? Thanks!
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Hi! Will delivery be door-to-door, direct to your address? Will there be any taxes/import duties to pay when the unit arrives? Thanks!
if sent thru the postal system, you will get a notification, then you will have to claim it at the post office and you will pay tax(lagay) if by fedex/air21, naku malaki ang gagastusin mo malamang...
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if sent thru the postal system, you will get a notification, then you will have to claim it at the post office and you will pay tax(lagay) if by fedex/air21, naku malaki ang gagastusin mo malamang...
The delivery is door-to-door. The courier normally ask you to pay for the custom taxes, and you'll get a receipt. first time ko sa ebay, i'm not sure kung papano na pag-nadeliver na.
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saan ba manggagaling yung unit?
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Kung China mainit ang dugo ng post office. Better kung US distro kung sale sila kahit mahal pa shipping.
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From Hongkong. bahala na, testing lang...
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eto astig 8k lang. If I only know how to buy online, I've already acquired this
http://cgi.ebay.ph/YAQIN-VK-2100-Integrated-Valve-Tube-Power-Amplifier-amp_W0QQitemZ250583563452QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a57f1bcbc (http://cgi.ebay.ph/YAQIN-VK-2100-Integrated-Valve-Tube-Power-Amplifier-amp_W0QQitemZ250583563452QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a57f1bcbc)
(http://www.ebay.i-store.asia/EB/products/amplifiers/integ_amp/AI-YQ-VK2100/YQ-VK2100_01a.jpg)
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nice find :)
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From Hongkong. bahala na, testing lang...
got it last March in good shape (no taxes) but had no chance to test it. I left for UAE job.
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for the craftsmanship, solb na sa price nito... ang ganda... ;D
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Where did you acquire the amp? And how much?
Thanks
JoeyGS
got it last March in good shape (no taxes) but had no chance to test it. I left for UAE job.
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Where did you acquire the amp? And how much?
Thanks
JoeyGS
Correction
I got it brand new from ebay (tubestein) at P17,138.98 including sea freight charges (6 weeks).
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Thanks :)
I got it brand new from ebay (tubestein) at P23,000.00 including sea freight charges (6 weeks).
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Thanks :)
mine is mc-10L el34 integrated amps
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eto astig 8k lang. If I only know how to buy online, I've already acquired this
http://cgi.ebay.ph/YAQIN-VK-2100-Integrated-Valve-Tube-Power-Amplifier-amp_W0QQitemZ250583563452QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a57f1bcbc (http://cgi.ebay.ph/YAQIN-VK-2100-Integrated-Valve-Tube-Power-Amplifier-amp_W0QQitemZ250583563452QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a57f1bcbc)
(http://www.ebay.i-store.asia/EB/products/amplifiers/integ_amp/AI-YQ-VK2100/YQ-VK2100_01a.jpg)
this is hybrid amp -combination of tube and ss.
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Thanks :)
Correction:
I got it brand new from ebay (tubestein) at P17,138.98 including sea freight charges (6 weeks). Yaqin MC-10L el34.
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Correction:
I got it brand new from ebay (tubestein) at P17,138.98 including sea freight charges (6 weeks). Yaqin MC-10L el34.
Ok yan si Tubestein sa ebay - madali kausap sa email. I almost bought his Yaqin MC-10L mkII.
But I went for a SET instead of Push-Pull.
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Ok yan si Tubestein sa ebay - madali kausap sa email. I almost bought his Yaqin MC-10L mkII.
But I went for a SET instead of Push-Pull.
I had no chance to test my MC 10L (still in box) , I've been using SET FU50 for a week now and waiting for my new order for SET 300B. What is your SET's specs? Thanks
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I had no chance to test my MC 10L (still in box) , I've been using SET FU50 for a week now and waiting for my new order for SET 300B. What is your SET's specs? Thanks
Im using Antique Sound Labs SET 300B Monoblocks that gives 8watts per channel. Its connected to A-Audio 15" coax with 98db sensitivity = goosebumps ;D
For preamp, Im using a Tono Violin with "coke bottle" rectifier tube - para naman may tubo na malaki si preamp to match the sexy 300B tubes of the monoblocks ;D
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Im using Antique Sound Labs SET 300B Monoblocks that gives 8watts per channel. Its connected to A-Audio 15" coax with 98db sensitivity = goosebumps ;D
For preamp, Im using a Tono Violin with "coke bottle" rectifier tube - para naman may tubo na malaki si preamp to match the sexy 300B tubes of the monoblocks ;D
Wow!!!
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I have heard good reviews about the Yaqin MC-10L integrated amplifiers and the Yaqin VK-2100 integrated amplifiers, so I decided to give them a shot. I have been listening to them the past couple of weeks and I am surprised at what these babies can do. You can hear the amplifiers at Rene's shop, phono stage you can audition with Noly, for people in the QC area you can visit Marc's avshop in Kalayaan. Prices are less 10% for the introductory price.
Rene Rivo tel 8325710
4408 Calatagan St corner Filmore Beside Davids Salon Makati City
Noly Dy tel 0917-7963998
324 Gen Vicente Lim St Little Baguio San Juan
Marc Yao
MLY Enterprises
Unit 303 Amarenca Bldg
107a Kalayaan Avenue Diliman Qc
YAQIN MC-10L
Push-Pull Class-A Integrated Stereo
Vacuum Tube Amplifier
220V
P25,000
(http://i5.photobucket.com/albums/y153/jamants/MC-10L.jpg)
Specifications
• Tubes: EL34B × 4 (Output Tubes)
6N1 × 4 (Voltage amplifiers and drivers)
• Maximum Output: 52W per channel (8Ω)
• Output Jacks: Two channels with two groups gold plated jacks
• Output Impedance: 4Ω and 8Ω
• Input Sensitivity: 0.3V
• Input Impedance: 20KΩ
• Input Jacks: 4 Groups gold plated Isolated RCA jacks (CD, DVD, Tape, and Tuner)
• Distortion of Harmonic Wave: ≤2% (at 40W)
• Frequency Response: 20Hz ~ 60KHz (-2dB 10W)
• Signal-to-Noise Ratio: 85dB (A weight)
• Supply Voltage: AC 115V, 60Hz
• Power Consumption: 220W
• Net Weight: 17kg
• Shipping Weight: 21kg (46.4lb)
• Shipping Dimension: 58cm x 43cm x 30cm
Features
• The latest version of MC-10L with external bias adjustment and aluminum front panel;
• Class A push-pull power amplifier to reduce distortion;
• Ultra linear push-pull amplifier provides greater output power;
• Output transformers manufactured with Japanese silicon steel sheet and high-quality enameled wire, which offer a wide dynamic range at full rated output;
• Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency;
• Applies special potentiometer as volume controller with low noise, and durable;
• Beautiful heavy duty chassis (stainless steel top, steel buttom) and aluminum panel and bezels.
The replacements of 6N1 tubes are 6AQ8, ECC85, ECC40, and 6N1P.
YAQIN VK-2100
Stereo Hybrid Tube Integrated
Push-Pull Amplifier
220V
P17,500
(http://i5.photobucket.com/albums/y153/jamants/VK-2100.jpg)
Specifications
• Tubes: 6N1 × 4 (Voltage amplifiers and drivers)
• Output Transistors: 2SA943 x 2 and 2SC5200 x 2 (Toshiba Japan)
• Maximum Output: 85W per channel
• Output Jacks: Two channels with two groups jacks
• Output Impedance: 8Ω
• Input Sensitivity: 0.25V
• Input Jacks: 4 Groups gold plated Isolated RCA jacks (AUX1, AUX2, AUX3, AUX4)
• Distortion: ≤0.5% (1KHz)
• Frequency Response: 10Hz ~ 100KHz (-1dB)
• Signal-to-Noise Ratio: 90dB (A weight)
• Supply Voltage: AC 115V, 60Hz
• Weight: 11kg
• Dimension: 42cm(W) x 34cm(D) x 12cm(H)
• Shipping Weight: 11.6kg (25.7lb)
• Shipping Dimension: 50cm x 48cm x 20cm
Features
• Demonstrates the ultimate in passion and elegance. Provides a generous soundstage with power and subtle detail perfect for any kind of music. To be perfect for the music enthusiast that prefers the warmth and detail of tubes without sacrificing the power;
• The double-triode tube circuitry of the pre-amplifier stage dictates the low level integrity, while the output transistors configured in Class AB for the best combination of power and performance;
• A loudness switch helps preserve the dynamics of your music even at low amplitude levels;
• OTL push-pull amplifier provides greater frequency response curve;
• Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency;
• Applies special potentiometer as master volume controller with low noise, and durable;
• Beautiful aluminum and steel heavy duty chassis, faceplate and bezels.
The replacements of 6N1 tubes are 6AQ8, ECC85, ECC40, and 6N1P.
YAQIN MS-12B
Stereo Vacuum Tube
Preamplifier and Phono Stage
P17,000
(http://i5.photobucket.com/albums/y153/jamants/MS-12B.jpg)
Specifications
· Tubes: 12AX7 × 2 (Phono voltage amplifier)
12AU7 × 2 (Voltage amplifier)
· Output Voltages: Dual outputs of either 0.25V or 0.7V
0.25V (for integrated amplifier)
0.7V (for power amplifier or second gear)
· Output Jacks: Two channels two group gold plated RCA jacks
· Input Sensitivity: ≤0.25V (Preamplifier)
≤5mV (Phono stage)
· Input Jacks: Two Groups gold plated RCA jacks (CD/DVD and Phono)
· Distortion of Harmonic Wave: ≤0.2% (Preamplifier)
≤0.5% (Phono stage)
· Frequency Response: 15Hz ~ 100KHz (-2.0dB)
· Signal-to-Noise Ratio: >75dB (CD/DVD input 0.5V 1KHz, output 0.7V)
>65dB (Phono input 10mV 1KHz, output 0.7V)
· Phono Stage Suitability: MM cartridge phonograph
· Supply Voltage: AC115V 60Hz
· Weight: 3.0kg (7.7lb)
· Dimension: 17cm(W) x 38cm(D) x 16cm(H)
· Shipping Weight: 4.6kg (10lb)
· Shipping Dimension: 45cm x 25cm x 23cm
Features
· Ability to use with CD/DVD player as a preamplifier and with MM cartridge turntable as a phono stage;
· Dual stereo outputs either 0.7V for a post stage amplifier or 0.25V for an integrated amplifier. It can be applied to bi-amp configuration;
· Employ DC filaments power supply to minimize humming noise;
· Adopts conventional active RIAA equalization in phono stage circuit;
· Power transformers manufactured with silicon steel sheet and high quality oxygen-free enameled copper wire;
· Utilizes the audiophile capacitors, such as Japanese Nippon Chemi-con capacitor filters, and high quality metal precision resistors dedicated for audio frequency;
· Applies special potentiometer as volume controller with low noise and durable;
· Beautiful aluminum heavy duty chassis, faceplate, and bezels.
Yaqin MS-11B MM RIAA PreAmplifier MS11B
Introductory Offer: P5,500
(http://i5.photobucket.com/albums/y153/jamants/ms-11b.jpg)
Output level: 500mV 0.5V
Input sensitivity: ≤5.5mV 1KHz
THD: ≤0.05% 1KHz
S/N ratio: ≥58dB A weighted 0.5V
Dimension: 140L x 50H x 120D mm
Weight: 3Kg
Power supply: 220v
YAQIN SD-CD2
Stereo Audio Upgrade
Tube Processor (Tube Buffer)
P5,500
(http://i5.photobucket.com/albums/y153/jamants/sd-cd2.jpg)
Specifications
• Tubes: 6J1 × 2 (Cathode followers)
• Output Jacks: Two channels with two gold plated RCA jacks
• Input Sensitivity: 0.55V (As output is 0.5V)
• Input Jacks: Two channels with two gold plated RCA jacks
• Distortion of Harmonic Wave: ≤0.15%(1KHz input)
• Signal to Noise Ratio: >75 dB
• Crosstalk Separation: >75 dB
• Frequency Response: 5Hz ~ 50KHz (-1.0dB)
• Supply Voltage: AC115V, 60Hz
• Dimension: 18cm(W) x 12cm(D) x 13cm(H)
• Shipping Weight: 2.1kg (4.6lb)
• Shipping Dimension: 25cm x 23cm x 19cm
Features
• The power transformers manufactured with silicon steel sheet and high-quality oxygen-free enameled copper wire;
• 100% three dimensional hand wiring. No circuit board;
• Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency;
• Beautiful aluminum panel with logo window and steel heavy duty chassis.
This processor employs cathode followers to improve your audio system. It outputs the same voltage as it receives. The voltage gain approaches one. It also adds tube audio quality to digital audio, reduces work load of a receiver (or an amplifier), and makes speakers sound warmer and more finer.
This processor can be connected in various configurations. It is to be installed between an audio source and a receiver (or an amplifer). The audio sources can be a solid state CD/DVD player, MP3 player, iPod, electric guitar, or computer audio output.
The 6J1 tubes can be replaced with EF95, 6AK5, and 5654
come by the shop to try them out. :)
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We just tested the MC-10L and the VK-2100 with a 683 pair, an RTi A7 pair and an RTi A3 pair in AVShop's demo room. These are great integrated amps for the price. Thanks Marc for inviting me over, and thanks James for your time and effort. Sa uulitin. :)
The MC-10L PP actually reminded me of a popular EL34 amp, minus the remote control. It sounded sweet without losing linearity or curtailing the frequency range. This amp performed great with the A3, but was also quite good with the A7. It lacked the lowest frequencies with the A3, but I found that combination better than having to live with loose lows from the FS speaks (especially with the 683). The MC-10L is an excellent choice for smooth vocals and downtempo jazz.
The VK-2100 Hybrid had the drive to control the A7 and the 683, so it was a natural for floorstanders (given their room size). It delivered a sharper sense of bite and precision, but wasn't nearly as sweet as the MC-10L. It can be quite dynamic (surprising for 85wpc), and was great with rock and r & b.
I didn't get to test them with classical works, but they're both excellent purchases. One is not better than the other, merely different.
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The yaqin MC10L sounds great good soundstage, crystal clear voice and bubbly bass...I matched with my Paradigm Titan speakers...actually I have 2 units bought in HK and I plan to sell one...if interested pls. text 09179178300 I might give a good price...
interest check? ;D ::)
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New stocks coming in next wednesday :)
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ano ba power consumption nung YAQIN VK-2100?
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anybody who already tried yaqin vk2100? Impressions naman?
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Hehe, sayang nga Ivan. Layo kasi naming mga probinsyano dyan sa syudad ;D
Natuloy ang mini EB namin nila brader Stan at Achbodom kagabi dito sa mini house namin :D
Isa lang masasabi ko sa Yaqin VK2100... WOOOWWWW!!!!! :o :o :o
Ngayon lang nakatikim ng ganung power yung RTi A3 ko. I can say na kahit anong speaker kayang kaya i-drive ng vk2100, kahit RTi A9 for sure mabubusog dito :D This amp can bring out the best to any speaker you will throw at it. We directly connected the analog L/R output of my Egreat S100 sa input ng vk2100. Vocals became clearer and "cleaner" compared to my Onkyo AVR set at pure audio. I could imagine how good LSi9 would sound when driven by vk2100... Instruments separation were very detailed, you could hear sa left and right channels kung anong instrumento and tumutugtog. Ramdam na ramdam namin bawat tipa ng guitara ng Indigo Girls sa Power of Two. The best part of this is yung power consumption. At 25% volume level ng vk2100 it draws at an average of 45 watts. At 30% nasa 60 watts but at this level babatuhin na kami ng kapitbahay namin. So this amp doesn't consume too much energy kaya hindi magsasuffer Meralco bill ;D
Anyone planning in getting a stereo amp? It is advisable to check this hybrid Yaqin out. If I have the budget I will definitely buy this in a heartbeat ;)
ang baba pala ng power consumption nito. i want me one, kaso may pinaglalaanan na on the way ;)
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The yaqin MC10L sounds great good soundstage, crystal clear voice and bubbly bass...I matched with my Paradigm Titan speakers...actually I have 2 units bought in HK and I plan to sell one...if interested pls. text 09179178300 I might give a good price...
Hi! elehobby, any comment on your MC10L experience so far? Have you encountered problems with the tubes or cosmetics? I'm also researching on this MC10L or VK2100.
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Hi, Yaqin inform me that the MC10L is already stop in production because of circuit design changes and improvements...new models are coming better sounding we will introduce it soon...Tnxs!
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Hi guys. Will the Yaqin Vk2100 be sufficient enough to power 4ohms speakers such as Dynaudio Audience 42?
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May I ask what is the primary function of Yaqin CD3 Input Tube Buffer? When is the time that we must buy this unit? ;D
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May I ask what is the primary function of Yaqin CD3 Input Tube Buffer? When is the time that we must buy this unit? ;D
My Set-up cheap cdp-->cd3 tube buffer-->Sakura Av200T amplifier-->DIY speakers...
sir, I've been using cd3 for maybe 3 or 4 months already. I'm not an electronic graduate or a music guru. These are my experiences for the pass few months.
Positive outcome:
If you're using a cheap cdplayer just like mine, bought at the streets of manila and not even china made. This tube buffer is good for you. It widens your sound stage. Much cleaner and clearer sound frequencies. It also helps when you connect an mp3 player. You can really hear the difference. With and Without the tube buffer.
Negative outcome:
I tested it to a highend setup. All Cayin line up from cdp to pre-amp and mono SET tube. It didn't work. It suppresses the quality of music. We put an audiophile voice software. Mid-frequency went up. The singer is there in front of you. But the instruments were not that emphasize. The sound stage from wide to narrow. All at the center.
Sir, please do an audition of the cd3 first then decide. if you have a higher kind of set up that i have. And if you have Tube cd player, NAD, Rotel, or any cd player that is greater or equal to those that i've mention. Don't buy cd3. IMHO. ;) ;) ;)
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Thank you majorkonig. ;D
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My Set-up cheap cdp-->cd3 tube buffer-->Sakura Av200T amplifier-->DIY speakers...
sir, I've been using cd3 for maybe 3 or 4 months already. I'm not an electronic graduate or a music guru. These are my experiences for the pass few months.
Positive outcome:
If you're using a cheap cdplayer just like mine, bought at the streets of manila and not even china made. This tube buffer is good for you. It widens your sound stage. Much cleaner and clearer sound frequencies. It also helps when you connect an mp3 player. You can really hear the difference. With and Without the tube buffer.
Negative outcome:
I tested it to a highend setup. All Cayin line up from cdp to pre-amp and mono SET tube. It didn't work. It suppresses the quality of music. We put an audiophile voice software. Mid-frequency went up. The singer is there in front of you. But the instruments were not that emphasize. The sound stage from wide to narrow. All at the center.
Sir, please do an audition of the cd3 first then decide. if you have a higher kind of set up that i have. And if you have Tube cd player, NAD, Rotel, or any cd player that is greater or equal to those that i've mention. Don't buy cd3. IMHO. ;) ;) ;)
Very informative input sir. In your 'cheap' setup, does the tube buffer help tame the sibilance of the amp? I have a similar 'cheap' setup, a sakura av400 (later version of the av200), but the sibilance is too pronounced. Am thinking of getting a tube buffer from Sir Tony. TIA!
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sir ubunterror,
yes in some software material, it tamed the sibilance of the sakura. but not all. if the material came from a poor quality form of music let say mp3 file, it depends how it was burnt. So different if you use audio cd player. But if very evident with the change in the SQ and sound stage between with or without cd3.
about your plan of getting a tube buffer of sir tony,
If you are referring to tonyt of pasig, i have a tube pre-amp made by tonyt. It was the best. it has 2 inputs. cd and phono. And i connect it to my sakura av200t. I'm not that guru type of a critical listener but whenever sir tonyt finished a project, he immediately call my attention so we can evaluate it. His tube buffer and pre-amp that was so small can perform well. I recommend that you should bring your sakura amp in order for you evaluate. Im not his sidekick or partner in business, but try it for yourself. if those tube buffers will work for your sakura amp.
Going back to our topic, i only used my yaqin cd3, placed in between the cdplayer and the amp. Just dont used the cd3 if you have a well known cdplayer and a perfect amp. Sayang lang ang cd3 kung magaganda naman ang set up. Just like what i've said in a negative outcome if being used to a highend set up. IMHO.
george
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sir ubunterror,
yes in some software material, it tamed the sibilance of the sakura. but not all. if the material came from a poor quality form of music let say mp3 file, it depends how it was burnt. So different if you use audio cd player. But if very evident with the change in the SQ and sound stage between with or without cd3.
about your plan of getting a tube buffer of sir tony,
If you are referring to tonyt of pasig, i have a tube pre-amp made by tonyt. It was the best. it has 2 inputs. cd and phono. And i connect it to my sakura av200t. I'm not that guru type of a critical listener but whenever sir tonyt finished a project, he immediately call my attention so we can evaluate it. His tube buffer and pre-amp that was so small can perform well. I recommend that you should bring your sakura amp in order for you evaluate. Im not his sidekick or partner in business, but try it for yourself. if those tube buffers will work for your sakura amp.
Going back to our topic, i only used my yaqin cd3, placed in between the cdplayer and the amp. Just dont used the cd3 if you have a well known cdplayer and a perfect amp. Sayang lang ang cd3 kung magaganda naman ang set up. Just like what i've said in a negative outcome if being used to a highend set up. IMHO.
george
Thanks for the reply sir George, really very useful. You can use pala a tube preamp with the integrated, it will be like using a tube buffer with attenuator. Yes it was sir TonyT I was referring to, and his tube buffers and preamps are very reasonably priced too. Will conact him in the very near future.
Many thanks again!
Alvin
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Thanks for the reply sir George, really very useful. You can use pala a tube preamp with the integrated, it will be like using a tube buffer with attenuator. Yes it was sir TonyT I was referring to, and his tube buffers and preamps are very reasonably priced too. Will conact him in the very near future.
Many thanks again!
Alvin
Hi Alvin, heres a good article from Val A. Villanueva of Philippine Star,
http://www.philstar.com/Article.aspx?articleId=728338&publicationSubCategoryId=449 (http://www.philstar.com/Article.aspx?articleId=728338&publicationSubCategoryId=449)
and a youtube video which is "kind off" related to it. ;D
http://www.youtube.com/watch?v=BY_QDhjqthE (http://www.youtube.com/watch?v=BY_QDhjqthE)
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Hi Alvin, heres a good article from Val A. Villanueva of Philippine Star,
http://www.philstar.com/Article.aspx?articleId=728338&publicationSubCategoryId=449 (http://www.philstar.com/Article.aspx?articleId=728338&publicationSubCategoryId=449)
and a youtube video which is "kind off" related to it. ;D
http://www.youtube.com/watch?v=BY_QDhjqthE (http://www.youtube.com/watch?v=BY_QDhjqthE)
Thanks sir Ivan, very useful links.
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Any Yaqin vk2100 owners in the community? Have you tried tube rolling on this? I just bought a very good second hand vk2100, what replacement tubes can you recommend and where to get these? Newbie lang po sa tubes here. :-[ TIA
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i did have a yaqin vk2100 few years back. as far as i remember, tube rolling did not much difference. i was using a pricey tube back then (sorry i forgot the brand). perhaps the yaqin tube is good after all.
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Any Yaqin vk2100 owners in the community? Have you tried tube rolling on this? I just bought a very good second hand vk2100, what replacement tubes can you recommend and where to get these? Newbie lang po sa tubes here. :-[ TIA
are you having issues? if not i'd say just leave it be....
tube rolling can be a double edged sword, you can be rewarded or you can end up with a stock of tubes for measly gain that is very subtle for the cost of tubes....but hey it's your money.....:D
i remember someone changed his 4 x 6922 tubes in an SP9 clone to a Russian 6H1P's, net effect was like having 8 tubes instead of 4, as a consequence his power traffo burned out, it was marginal to begin with and the doubled load was too much for the power traffo to handle....
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Kayo ang mga guro dito, i think i have to follow your advise ;D ;D Yung pinalitan ng Yaqin ay isang vintage NAD 3100. Yaqin has slight edge in the mids and highs dept. but the NAD was superior when it comes to low frequency. The NAD is now being enjoyed by another Pdvd member though. ;D ;D
Will a CD tube buffer improve further the sound of yaqin? Thanks very much.
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Kayo ang mga guro dito, i think i have to follow your advise ;D ;D Yung pinalitan ng Yaqin ay isang vintage NAD 3100. Yaqin has slight edge in the mids and highs dept. but the NAD was superior when it comes to low frequency. The NAD is now being enjoyed by another Pdvd member though. ;D ;D
Will a CD tube buffer improve further the sound of yaqin? Thanks very much.
if you're going to add cd tube buffer i think magiging redundant lang or kung magkaroon man ng improvement kumbaga hindi sulit because tube na ang preamp section ng vk2100. the best use for tube buffer is if your using solid state amp/integrated then you want the tube sound.
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agreed, tube buffers are for those using laptops, ipads and other mp3 devices into a solid state amplifier, a la Sakura AV200...
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Will a CD tube buffer improve further the sound of yaqin? Thanks very much.
Simplest answer is a No. Tube/Solid State buffers are not EQ devices nor miracle workers. :)
Whatever you do to the Yaqin will only be in vain. The limiting device there is the output transformer, unless you replace it with something that will saturate well below 20Hz then you can't expect that amp to go real low.
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jojo, the amp in question here is a "hybrid amp", tube front-ends and mosfet output if i am not mistaken...:D
(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcReiHiSMl-D0szBp1dVg0Bf9dgNeeL1q8c4AWBvGQVv2BuL3PCa6g)
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jojo, the amp in question here is a "hybrid amp", tube front-ends and mosfet output if i am not mistaken...:D
(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcReiHiSMl-D0szBp1dVg0Bf9dgNeeL1q8c4AWBvGQVv2BuL3PCa6g)
Really? Thanks for clarifying. :D
Well this is going to be the first time I heard a hybrid that doesn't go very low. I read that the user's former amp is a NAD, it is for it's design a dark sounding amp, but a hybrid that has an ss output sec can surely reproduce lot's of weight on the lower region unless it is designed otherwise.
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you remember an Aussie guy got banned at diyaudio? he claims to have designed this hybrid amps.....:D
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you remember an Aussie guy got banned at diyaudio? he claims to have designed this hybrid amps.....:D
nope... so from Aussie to China? ;D
But I clearly remember someone posting a valid looking schematic of one of their tube amps... but I got so mad to see a single npn transistor (probably a high voltage mpsa42) acting as a phase splitter!!! wtf!!!
Isang triode na lang per channel pinagtipiran pa tsk tsk tsk...
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the Chinese can clone anything, they have all the means....
Broskie invented the Aikido which was used and of course the mosfet output stage has been widely known since, for someone to claim to have invented it is asking too much....
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are you telling me someone is owning up on the moskido already? geez I think I should stop with these design stuff and go out more often. :D
anyway, here's the "tube amp" that has a transistor as a phase splitter... I stand corrected, it is not an MPSA42 but a 2SD669... ;D
(http://www.diyaudio.com/forums/attachments/tubes-valves/112896d1217173829-transistor-phase-splitter-yaqin-mc-84l-mc-84l_circuit2.jpg)
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Yaqin has slight edge in the mids and highs dept. but the NAD was superior when it comes to low frequency. ;D ;D
baka ito na yung sinasabi ng ilang nakausap ko na manipis tumunog ang mga Yaqin? :( kaya ang sagot ko, "tunog lata?"
'di naman siguro at wag naman... ganda pa naman ng porma.
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Actually, the bass output of Yaqin vk2100 is already very good. I said that (imho) nad is way better. BTW i'm using a Wharfedale Valdus 4.
Anyway, thanks sa mga sagot mga gurus. At least makakatipid ako pag di na ako bumili ng tube buffer hehe. Will look na lang for a better speakers siguro.
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so the lesson learned here, go for the best amplifier speaker matching....
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baka ito na yung sinasabi ng ilang nakausap ko na manipis tumunog ang mga Yaqin? :( kaya ang sagot ko, "tunog lata?"
'di naman siguro at wag naman... ganda pa naman ng porma.
hindi naman siguro, mahirap naman mag generalize lalu na pag hindi actual testing diba...
Actually, the bass output of Yaqin vk2100 is already very good. I said that (imho) nad is way better. BTW i'm using a Wharfedale Valdus 4.
Anyway, thanks sa mga sagot mga gurus. At least makakatipid ako pag di na ako bumili ng tube buffer hehe. Will look na lang for a better speakers siguro.
You are right, ymmv as always and it is a balancing act really. I guess that's where we derive our joy in this hobby's adventure...
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are you telling me someone is owning up on the moskido already? geez I think I should stop with these design stuff and go out more often. :D
anyway, here's the "tube amp" that has a transistor as a phase splitter... I stand corrected, it is not an MPSA42 but a 2SD669... ;D
(http://www.diyaudio.com/forums/attachments/tubes-valves/112896d1217173829-transistor-phase-splitter-yaqin-mc-84l-mc-84l_circuit2.jpg)
ot na tayo, pero you have to give it to the Chinese, they can imagine more things that we can not....
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ot na tayo, pero you have to give it to the Chinese, they can imagine more things that we can not....
hindi tayo OT tony, we are perfectly on topic because that is a Yaqin mc84l. ;D
yeah they can be very imaginative, but we all can be that imaginative, I even saw an opamp based tone control trying it's guts out to supply the needed grid voltage of an EL34... some imagination...
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You are right, ymmv as always and it is a balancing act really. I guess that's where we derive our joy in this hobby's adventure...
so the lesson learned here, go for the best amplifier speaker matching....
Di na pala ako dapat lumayo eh, i already have the speakers matched with Yaqin vk 2100. I tried the Mission M72 which i used as front in my bedroom HT setup and was amazed at the new sound it gives. I now have the highs, the mids and lows that i'm looking for. Whoao! Robben Ford and his band seems to be just in front of me playing "Start it Up".
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Mga sir, tanong ko lang, kasi meron ako Mc-100b. na pansin ko lang kanina na yung cd player nasa line1, tapos na isip ko connect ng isa pa sa line2 kaso habang nag play yung cd sa line1 tapos nilipat ko sa line2 na rinig ko pa rin yung cd player na nasa line1 pero mahina na lang na parang bumubulong. ok lang ba yung o may problema unit ko?
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Mga sir, tanong ko lang, kasi meron ako Mc-100b. na pansin ko lang kanina na yung cd player nasa line1, tapos na isip ko connect ng isa pa sa line2 kaso habang nag play yung cd sa line1 tapos nilipat ko sa line2 na rinig ko pa rin yung cd player na nasa line1 pero mahina na lang na parang bumubulong. ok lang ba yung o may problema unit ko?
dapat walang crosstalk.
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Mga sir, tanong ko lang, kasi meron ako Mc-100b. na pansin ko lang kanina na yung cd player nasa line1, tapos na isip ko connect ng isa pa sa line2 kaso habang nag play yung cd sa line1 tapos nilipat ko sa line2 na rinig ko pa rin yung cd player na nasa line1 pero mahina na lang na parang bumubulong. ok lang ba yung o may problema unit ko?
tama dapat walang crosstalk sir... baka may problema lang ang selector switch...
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Thanks, alam ko nga dapat wala eh :(.
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i contact cleaner mo yan, or better yet palitan na....
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I think yaqin amps are plagued by this issue. I remember my Vk2100 doing the same thing din dati.
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it could be that the input tube is not properly terminated, yes, i believe this is a design issue, kung me iba pang naka experience...
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they should recall it then or offer free updates to take care of the problems...
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i remember that american companies, like Mcintosh and the other the big one's do come up with engineering/service updates, equipment goes thru several revisions based on experience on the field.....but these are Chinese, we do not know what their after sales service look like...
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Puntahan ko nga yung shop mamaya para papalitan
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Anu din pala magiging problema kung pababayaan ko lang na may crosstalk?
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Puntahan ko nga yung shop mamaya para papalitan
you can also do Yaqin a favor by emailing them, state model number, serial number of your unit.....
it would be interesting to hear what their fix is...
who knows they might even send you some replacement parts like some american companies do..
the important thing is to ask.....:D
i am sure that these complaint will not be the first one coming from you..
while i recommend replacement of selector switch, it is not a 100% cure...
go for the ceramic types, phenolic types such as those sold by deeco tends to harbor moisture...
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Anu din pala magiging problema kung pababayaan ko lang na may crosstalk?
pwedeng lumala or lumkas ang level ng cross talk, one simple cure, train a hair dryer on the selector switch, that might remove a lot of the moisture ...
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Anu din pala magiging problema kung pababayaan ko lang na may crosstalk?
First of all, di dapat pabayaan sir so I strongly suggest to bring it back and have them figure out what is wrong. Secondly, crosstalk is like a party line or what we call "splatter" in 2-meter lingo, they're just simply annoying. ;D
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Thanks. Sayang gusto ko panaman yung tunog nung kt88. Ang inaalala ko kasi kung lahat ng unit ng mc100b ay may crosstalk pumayag kaya yung shop na i refund ko nalang yung payment ko.
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depende sa terms of sale or RMA kung meron man, pero in general pwede dapat as per our DTI...
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Thanks. Sayang gusto ko panaman yung tunog nung kt88. Ang inaalala ko kasi kung lahat ng unit ng mc100b ay may crosstalk pumayag kaya yung shop na i refund ko nalang yung payment ko.
Wait, if the crosstalk persists even with other units then there is a major design problem there or a faulty part that was supplied to the manufacturer and used during production.
If it's not the case above then di naman siguro lahat may crosstalk sir, baka natyempo ka lang sa may problem na selector switch.
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Wait, if the crosstalk persists even with other units then there is a major design problem there or a faulty part that was supplied to the manufacturer and used during production.
If it's not the case above then di naman siguro lahat may crosstalk sir, baka natyempo ka lang sa may problem na selector switch. [/qoute]
Sana nga sir, dami ko panaman nabasa na magandang review bago ko kinuha, tapos halos lahat nga tube roll and nag upgrade ng caps sa loob para mas lalo daw maging maganda
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Ok then. Good luck on having your unit replaced sir and happy modding. :)
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Ok then. Good luck on having your unit replaced sir and happy modding. :)
Thanks. Pero kung may crosstalk talaga , refund ko nalang then bahalana si batman medyo malas sa first tube experience ko.
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Ill ask on my Yaqin FB group if some of them experience crosstalk on their 300B as most of the members owns them.i think its one of the most popular Yaqin model out there aside from the mc10 variant.
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Thanks. Pero kung may crosstalk talaga , refund ko nalang then bahalana si batman medyo malas sa first tube experience ko.
Wag naman po sana, I feel this is only an isolated case sir. Huwag mawalan ng pag asa at higit sa lahat ipagpatuloy ang pagiging tubero!
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Ill ask on my Yaqin FB group if some of them experience crosstalk on their 300B as most of the members owns them.i think its one of the most popular Yaqin model out there aside from the mc10 variant.
thanks, btw mc-100b po yung sa akin.
Wag naman po sana, I feel this is only an isolated case sir. Huwag mawalan ng pag asa at higit sa lahat ipagpatuloy ang pagiging tubero
sige sir tuloy ko pagiging tubero
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ohh yeah sorry mc100B pala
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i looked at the schematics and it seems that the input signal passed thru several connectors and that could have contributed to cross talk, so it looks like this is not just a matter of switch replacement...as i earlier thought...
in fact this the first time and in this forum i came to know about this issue....
i really think you should email Yaquin directly...
(http://www.ict-net.net/100B2.jpg)
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i looked at the schematics and it seems that the input signal passed thru several connectors and that could have contributed to cross talk, so it looks like this is not just a matter of switch replacement...as i earlier thought...
in fact this the first time and in this forum i came to know about this issue....
i really think you should email Yaquin directly...
(http://www.ict-net.net/100B2.jpg)
salamat sir
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Pero kung line1 lang gagamitin ko or isang cd player lang, ok lang ba na ganun? May nabasa ako na ginamitan niya ng separate na pre amp since pwede mo bypass yung preamp nung mc 100b
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kita sa schematic na pwede naman gamitan ng ibang preamp...
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wala ba under-chassis pics yan?
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wala ba under-chassis pics yan?
meron sa net, d ko pa kasi binubuksan kc 4days palang sa akin
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bring it to the store asap and demo the problem to them, under warranty pa pala yung tube amp mo they should do something about it
good luck
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The 100B has separate power supplies and circuits for left and right channel - it is in fact supposed to be 'dual mono'. Therefore there should absolutely not be 'crosstalk' with this model. If however you mean that their is 'leakage' between preamp inputs then my advice would be to use the front sockets (which are better anyway) and use either a passive or active preamp (passive preamps are cheaply available and work well due to the 'high gain').
I also get crosstalk but I have to pump up the volume to it's max. I mention this a while ago and there were some Yaquin users that also had the same. Nothing to worry...
My 100b has no cross talk at all. My old MS-20L did
sagot sa akin nung nagtanong ako about your problem sa FB group ng Yaqin.
mukhang hindi lang sa isang model lumalabas yung problem na to pati sa ibang model meron din, luckily my yaqin mc10t doesn't have crosstalk at all.
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sagot sa akin nung nagtanong ako about your problem sa FB group ng Yaqin.
mukhang hindi lang sa isang model lumalabas yung problem na to pati sa ibang model meron din, luckily my yaqin mc10t doesn't have crosstalk at all.
wala kasi sila nung mc10t, tsaka habol ko kasi dito sa mc 100b is yung kt88, yung susunod kasi na amp na naka kt88 hindi na kaya ng budget.
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There can be crosstalk problems on the inputs with the 100B, I have experienced it a little myself. It has come up before & as already stated it’s often at high volume or on inputs with high gain. It’s due to the rotary selector switch. It’s a more common problem than many people may think, but an easy solution is to ensure anything connected to other inputs is turned off while you listen to the input you wish to use.
I don’t consider it an issue, more of a fixable annoyance.
eto pa isang reply nung mga friendly guys from the Yaqin FB group. if you have an FB account(w/c i doubt if you don't :) :) ) try to look for the group, madami ka doon matututunan, and the guys there are friendly. andun din si Les Carpenter who wrote the guide in modding the mc10L.
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some designs short out any input that is not selected, the shorting resistor can be a 10k 1/4 watter....
due to the high input impedance of tubes, this thing can and do happen sometimes....
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eto pa isang reply nung mga friendly guys from the Yaqin FB group. if you have an FB account(w/c i doubt if you don't :) :) ) try to look for the group, madami ka doon matututunan, and the guys there are friendly. andun din si Les Carpenter who wrote the guide in modding the mc10L.
eto pala yon....https://www.facebook.com/groups/235849143332/
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Yes sir Tony that's it.
if you guys own a yaqin I suggest you follow that group madami din tips and suggestion doon and reviews ng mga different tubes na ginamit nila, but most of the guys are from UK and some from Australia and New Zealand.
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Di pala magandang mag tie-up ang Yaqin at Apple... Hehe....sorry po sa ot. ;)
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fixable annoyance... well they should have fixed that up in the first place before letting them amps out the door...
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materials degrade over time, there is a good reason for using ceramic types on rotary switches...
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yes they do, but to cause crosstalk? I seriously doubt it... loose connection pwede pa...
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ever heard about surface resistance caused by air pollution?
soot has that funny way of getting inside amps and depositing
themselves in places we do not want them....:D
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so you think that's what causes the crosstalk?
but shouldn't that cause degradation of the signal instead of jumping around the place? ;D
anyway, I hope they get fixed.
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I'm guessing that if soot affects your sound, you have more urgent things like your health to worry about.
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I'm guessing that if soot affects your sound, you have more urgent things like your health to worry about.
yes this is also true....
tubes have very very high input impedance, in the meggohms range for as long
as the grid stays negative with signal...
i also encountered this cross-talk or signal leakage when i was starting out with tubes
about 40 years ago....:D
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Took some pictures of the internal. Had to open the unit because I accidentally dropped the allen screw that was holding the grills in the bias pot.
(http://i689.photobucket.com/albums/vv259/chiryu18/image_zpsf49b2106.jpg)
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(http://i689.photobucket.com/albums/vv259/chiryu18/image_zpsd66c2626.jpg)
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(http://i689.photobucket.com/albums/vv259/chiryu18/image_zpse1baab18.jpg)
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(http://i689.photobucket.com/albums/vv259/chiryu18/image_zps615eef27.jpg)
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(http://i689.photobucket.com/albums/vv259/chiryu18/image_zps208d5946.jpg)
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(http://i689.photobucket.com/albums/vv259/chiryu18/image_zps359c95f2.jpg)
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can you shoot the path from input jacks all the way to the input selector on the front panel?
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can you shoot the path from input jacks all the way to the input selector on the front panel?
cge sir
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check this also bro.....
"MAINS INPUT AND VOLTAGE SELECTION SWITCH
It was nice to see that metal structures carrying mains supply, like the mains transformer
mount, has its own separate Earth connection. There are no screen grid resistors on the
EL34's which I would have liked to see. Also the 4 channel inputs are still lumped together
which may give crosstalk problems. "
http://homepage.ntlworld.com/lez/YAQIN%20MC10/A%20LOOK%20AT%20THE%20YAQIN%20MC10L.pdf
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Also the 4 channel inputs are still lumped together
which may give crosstalk problems. "
agreed, wires running parallel to each other forms a capacitor, that is the mechanism involved,
what i do in my builds is to use 2 conductor plus shield/screen cables, one for each input....
fyi, the sakura AV400 used a selector chip right at the input jacks so that cross-talk is not an issue..:D
jojod did a preamp build with relay input selectors sometime back...
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I used to own a Yaqin VK-2100 & meron ding crosstalk, iba-iba pa levels kapag nagpapalit input selector ;D ;D
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Mga gurus. I have a straight solid-state set up and wanted to experience tube sound. Will the Yaqin CD2 buffer give me a tube sound or should i look for a tube preamp to get that experience. Thanks
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Go tube preamp.
The buffer only 'matches' the preceding component with the succeeding component in its line level connection.
Mga gurus. I have a straight solid-state set up and wanted to experience tube sound. Will the Yaqin CD2 buffer give me a tube sound or should i look for a tube preamp to get that experience. Thanks
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Need help mga sir, I have Yaqin MC10T, one side of the speaker output is no longer giving signal. Can you direct me to a good technician in Makati to Las Pinas area. Thanks PDVD.
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rene rivo is nearer to you...search him on facebook...
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Thanks sir Tony.
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The left channel of my Yaqin MC10T gives a crackling sound on the tweeter. Wala naman po ako na-notice na kakaiba sa lower frequencies. I tried switching speakers and the same was the result. Another problem pa po ay whenever i change volume, may karaskas po sa tunog ng mga speakers while rotating. Ano po kaya ang problema? Linis lang ba? Dapat ba magapalit ng tube? Dapat ba magpalit ng volume pot? Bagohan lang po ako sa tube amp. Mga masters, any suggestion/help?
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Clean the volume pot with contact cleaner spray or lighter fluid.. ikot ikot mo yung knob pagkatapos mo lagyan ng contact cleaner or lighter fluid.
Sent from my iPhone using Tapatalk
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clean also the tube sockets using contact cleaners....
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Many thanks mga sirs. Will do as advised.
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china sockets suck, but then what alternatives to we have?