Author Topic: Surplus amps (Read 991108 times)

av_phile · « **Reply #240 on:** Nov 11, 2003 at 08:18 AM »

Quote from: akyatbundok on Nov 10, 2003 at 08:19 PM

its been a month since i got the sansui. i started to write my impressions when i posted the pics last month, but i changed my mind coz i wanted to keep it to myself, lie low muna until i spot the newer & higher model alpha-907i. baka tumaas ang demand eh, di ko na makuha.

ngayon di na pwede itago dahil buking na!! hehe

(don't get the F or G models, they're not as good as the alpha)

Good decision. I had a pre-owned Sansui AUD11 as my first serious integrated amp way back in 1987. Among the prevalent brands in components locally avaialble in the 70s and 80s like Kenwoods and Pioneers, I much preferred the Sansui both in looks and sounds. Just wish I had kept it together with other stuff like turntables and LPs.

akyatbundok · « **Reply #241 on:** Nov 12, 2003 at 11:05 AM »

oh man, that is one seriously big amp... isn't that the international equivalent of the au-907?

internal pic --> Sansui AU-D11

av_phile · « **Reply #242 on:** Nov 12, 2003 at 11:47 AM »

Quote from: akyatbundok on Nov 12, 2003 at 11:05 AM

oh man, that is one seriously big amp... isn't that the international equivalent of the au-907?

internal pic --> Sansui AU-D11

With much regret, Yup, Looks sadly familiar. Am not sure of the international name though. thanks for reminding me.

j_albert22 · « **Reply #243 on:** Nov 12, 2003 at 11:59 AM »

akyat patulong ako mahanap manual nang AU-alpha507i at AU-D707G extra para makapagdecide ako kung maganda before ko kunin

http://www.retroaudio.ru/sansui/index.shtml

ArnieSwarzie · « **Reply #244 on:** Nov 12, 2003 at 12:07 PM »

Quote from: av_phile on Nov 12, 2003 at 11:47 AM

With much regret, Yup, Looks sadly familiar. Am not sure of the international name though. thanks for reminding me.

Oh dont despair now! It is just 120watts/channel. THD 0.005%
weighs 17.5kg, 600watts power consumption, 150W damping factor into 8 ohms. freq response DC-300khZ 0,-3dB.

You can buy it again!!! . . . . . what???

Yes, you can buy it again.

AU-D11 is the international release of japanese AU-D907F (circa 1980). So get one for yourself in pier - PHP 5,500.

av_phile · « **Reply #245 on:** Nov 12, 2003 at 12:46 PM »

Quote from: ArnieSwarzie on Nov 12, 2003 at 12:07 PM

Oh dont despair now! It is just 120watts/channel. THD 0.005%
weighs 17.5kg, 600watts power consumption, 150W damping factor into 8 ohms. freq response DC-300khZ 0,-3dB.

You can buy it again!!! . . . . . what???

Yes, you can buy it again.

AU-D11 is the international release of japanese AU-D907F (circa 1980). So get one for yourself in pier - PHP 5,500.

I will I will!!!! I'll get three for a 6.1 set-up!!!

It's really amazing how well specified or designed those amps were. And to think Onkyo is trumpeting its WRAT receivers that only goes down to 10hz, when a 20 year old Sansui goes straight to DC.!!

akyatbundok · « **Reply #246 on:** Nov 12, 2003 at 01:34 PM »

Quote from: j_albert22 on Nov 12, 2003 at 11:59 AM

akyat patulong ako mahanap manual nang AU-alpha507i at AU-D707G extra para makapagdecide ako kung maganda before ko kunin

j_albert22, pictures of the different models can be found in the sansui.us website. i saw the rear pics of the alpha507i and d707g there... it seems they dont have power amp direct inputs so you cannot use them as a power amp for your receiver. but if your intent is for a separate stereo amp for music, the specs will be your guide. the alpha507i is kinda lightweight at 7.4kg. i couldnt find specs but i would estimate it to be between 60-80watts/ch. the 707's are usually 100watts/ch and above, which is my preferred power output.

click here --> Sansui models

akyatbundok · « **Reply #247 on:** Nov 12, 2003 at 01:37 PM »

Quote from: john5479 on Nov 12, 2003 at 01:19 PM

well if you get three of those if its possible replace the power supply caps

hehe pwede ka na mag dealer ng power caps... each amp has 8 large ones, so you will have 24 of them softdrink-sized caps.

av_phile · « **Reply #248 on:** Nov 12, 2003 at 01:41 PM »

Quote from: link=board=10;threadid=15332;start=240#msg274835 date=

Quote

Definitely. Just hope hindi lang yun.

sebman · « **Reply #249 on:** Nov 12, 2003 at 01:41 PM »

sama din ako sa surplus amp eb.. basta boss akyat.. pag merong bago.. inform mo muna ako bago sila ha.. heheehehe

john5479 · « **Reply #250 on:** Nov 12, 2003 at 01:53 PM »

Quote from: akyatbundok on Nov 12, 2003 at 01:37 PM

hehe pwede ka na mag dealer ng power caps... each amp has 8 large ones, so you will have 24 of them softdrink-sized caps.

i wish

[slayer] · « **Reply #251 on:** Nov 12, 2003 at 01:59 PM »

Sama ako diyan... hanap ako CDP.

Quote from: sebman on Nov 12, 2003 at 01:41 PM

sama din ako sa surplus amp eb.. basta boss akyat.. pag merong bago.. inform mo muna ako bago sila ha.. heheehehe

j_albert22 · « **Reply #252 on:** Nov 12, 2003 at 02:41 PM »

Quote from: akyatbundok on Nov 12, 2003 at 01:34 PM

j_albert22, pictures of the different models can be found in the sansui.us website. i saw the rear pics of the alpha507i and d707g there... it seems they dont have power amp direct inputs so you cannot use them as a power amp for your receiver. but if your intent is for a separate stereo amp for music, the specs will be your guide. the alpha507i is kinda lightweight at 7.4kg. i couldnt find specs but i would estimate it to be between 60-80watts/ch. the 707's are usually 100watts/ch and above, which is my preferred power output.

click here --> Sansui models

thanks akyat I use only for stereo music

H a n $ · « **Reply #253 on:** Nov 12, 2003 at 02:44 PM »

J_albert,

pre turo mo sa akin yan ha... wag kina sebman and slayer!!

j_albert22 · « **Reply #254 on:** Nov 12, 2003 at 03:17 PM »

pwede na yung AU-alpha507i pero tanong ko kung may parating pang bago.......timbre ko na lang

joan2 · « **Reply #255 on:** Nov 12, 2003 at 05:28 PM »

Quote

hehe pwede ka na mag dealer ng power caps... each amp has 8 large ones, so you will have 24 of them softdrink-sized caps.

akyat,
sa deeco marami nyan, biggest size is 22,000ufd/100v, cost is a little less than a thou....make is Rubycon....

joan2 · « **Reply #256 on:** Nov 12, 2003 at 08:48 PM »

Quote from: av_phile on Nov 12, 2003 at 12:46 PM

I will I will!!!! I'll get three for a 6.1 set-up!!!

It's really amazing how well specified or designed those amps were. And to think Onkyo is trumpeting its WRAT receivers that only goes down to 10hz, when a 20 year old Sansui goes straight to DC.!!

just to remind you, an amp with a dc specs implies no input coupling capacitors nor dc caps at the feedback cuircuit....could be servo type, to keep the input offset voltages to low levels....

levi · « **Reply #257 on:** Nov 12, 2003 at 10:12 PM »

Quote from: av_phile on Nov 12, 2003 at 12:46 PM

I will I will!!!! I'll get three for a 6.1 set-up!!!

It's really amazing how well specified or designed those amps were. And to think Onkyo is trumpeting its WRAT receivers that only goes down to 10hz, when a 20 year old Sansui goes straight to DC.!!

Three integrated amp for a 6.1 setup? Then 3 rin ang volume mo? Panahon pa ni lexmil yang planned setup mo. Diba mahirap yon. Mas mura pa bumili ng 6 channel receiver para tapos agad. Cheaper pa in your part.

voj · « **Reply #258 on:** Nov 13, 2003 at 10:43 AM »

Quote from: av_phile on Nov 12, 2003 at 12:46 PM

I will I will!!!! I'll get three for a 6.1 set-up!!!

It's really amazing how well specified or designed those amps were. And to think Onkyo is trumpeting its WRAT receivers that only goes down to 10hz, when a 20 year old Sansui goes straight to DC.!!

Here we go again...

Can you please explain to me why buying 3 surplus unwarranted amplifiers (even if it is highly rated) would be better off than buying a spanking brand new 6.1 receiver with all the latest technology and warranty to boot.

I can understand it if you have 3 amps lying around and you are just making do with the situation. But to spend the same amount of money that can buy you a brand new one seems incredulous. I'm stumped. But hey, I'm open minded. I'm willing to listen. I might have missed something here.

No offense meant. But I hope the newbies discern when they are being taken for a ride.

We're all responsible adults here.

<correction added> We should all be responsible adults here.

akyatbundok · « **Reply #259 on:** Nov 13, 2003 at 11:10 AM »

well, take it from me, i've tried it (partially anyway)... adjusting the volume is a pain!! say for example i'm in the middle of a movie and my sister asks me a question. i turn down the volume of the fronts first, and only the front effects go away, so the dialogue is still interfering with our conversation. then i turn down the center. now i hear all bass from the subwoofer. i tell myself forget the bass... what were you asking? - do you want meat lover's or super supreme? ... arrrgggh!! now i have to run the speaker setup again... how many interruptions happen in one movie? 5x = PAIN...

but if you already have a receiver and your intent is to give your front 2 channels additional muscle by using the power amp section of your integrated amp (assuming it has power amp inputs), then a surplus is an economical way of doing it. just be aware that this is JUNK were talking about. as long as you understand what it is... you get it as-is so you can either choose to make a gamble, or save up for a bnew unit.

av_phile · « **Reply #260 on:** Nov 13, 2003 at 11:46 AM »

Quote from: levi on Nov 12, 2003 at 10:12 PM

Three integrated amp for a 6.1 setup? Then 3 rin ang volume mo? Panahon pa ni lexmil yang planned setup mo. Diba mahirap yon. Mas mura pa bumili ng 6 channel receiver para tapos agad. Cheaper pa in your part.

I was just thinking out loud. I figured the surplus price is so cheap, getting three wouldn't hurt that bad. The cheapest Rotel 6-ch amp cost 30T with only 60 watts RMS per sharing one toroid . Those 3 surplus integrateds might cost only around 16T altogether. I would then have 3 separate power supplies powering 6 chanels.

And besides, if ever, i will bypass all their preamps via the pre-main jack at the back, as I already have a Rotel pre/pro to control the signals. Actually, what I am interested in are surplus power amps. But integrateds with bypassable preamps will do if dirt cheap.

Then again, still thinking out loud.

av_phile · « **Reply #261 on:** Nov 13, 2003 at 12:05 PM »

Quote from: vojdiaz on Nov 13, 2003 at 10:43 AM

Here we go again...

Can you please explain to me why buying 3 surplus unwarranted amplifiers (even if it is highly rated) would be better off than buying a spanking brand new 6.1 receiver with all the latest technology and warranty to boot.

I can understand it if you have 3 amps lying around and you are just making do with the situation. But to spend the same amount of money that can buy you a brand new one seems incredulous. I'm stumped. But hey, I'm open minded. I'm willing to listen. I might have missed something here.

No offense meant. But I hope the newbies discern when they are being taken for a ride.

We're all responsible adults here.

<correction added> We should all be responsible adults here.

Hi Voj,

Pls see my response to Levi.

Just to reiterate, I am interested in surplus power amps. In earlier inquiring posts, apparently there are none. Only integrateds. But integrateds where I can bypass that preamp section will do if dirt cheap. Am into separates. Not interested in receivers. But i don't mind getting bargains when they present themselves.

Taking people for a ride??? I don't recall advising anyone to take this route. It's a complex route. This is only me taking the ride if at all. I just reacted from a response that said such an integrated as I had in the past is available at the pier. I said with the price of 5T or so, i'd take three anytime. But I'd appreciate if you can suggest a 100 watt/ch 6-channel power amp for about 16T or 17T. Thanks.

av_phile · « **Reply #262 on:** Nov 13, 2003 at 12:45 PM »

Quote from: akyatbundok on Nov 13, 2003 at 11:10 AM

well, take it from me, i've tried it (partially anyway)... adjusting the volume is a pain!! say for example i'm in the middle of a movie and my sister asks me a question. i turn down the volume of the fronts first, and only the front effects go away, so the dialogue is still interfering with our conversation. then i turn down the center. now i hear all bass from the subwoofer. i tell myself forget the bass... what were you asking? - do you want meat lover's or super supreme? ... arrrgggh!! now i have to run the speaker setup again... how many interruptions happen in one movie? 5x = PAIN...

but if you already have a receiver and your intent is to give your front 2 channels additional muscle by using the power amp section of your integrated amp (assuming it has power amp inputs), then a surplus is an economical way of doing it. just be aware that this is JUNK were talking about. as long as you understand what it is... you get it as-is so you can either choose to make a gamble, or save up for a bnew unit.

Yup, I realize the risk. But like I said, am just thinking out loud. The possibliities out there are many. Surplus integrated or amps are an option for me. Have yet to visit the piers if such amps are inded available as mentioned here. And if i do get some nasty junks, I'd fall back to what little electrojics I know, confident that there are people in this forum I can rely on for needed assitance if i need some.

akyatbundok · « **Reply #263 on:** Nov 13, 2003 at 01:36 PM »

Quote from: av_phile on Nov 13, 2003 at 12:45 PM

Yup, I realize the risk. But like I said, am just thinking out loud. The possibliities out there are many. Surplus integrated or amps are an option for me. Have yet to visit the piers if such amps are inded available as mentioned here. And if i do get some nasty junks, I'd fall back to what little electrojics I know, confident that there are people in this forum I can rely on for needed assitance if i need some.

actually bro i didn't see anything wrong with your post... you didn't have to explain yourself. i assume its ok for someone to rave about a product without having to explain himself? there are lots of posts in this board that rave & rant, everybody can have an opinion. there must be more to this than just buying a sansui amp. curious lang po ako sa post mo sir vojdiaz...

iceman90a · « **Reply #264 on:** Nov 13, 2003 at 03:18 PM »

Quote from: akyatbundok on Nov 13, 2003 at 11:10 AM

well, take it from me, i've tried it (partially anyway)... adjusting the volume is a pain!! say for example i'm in the middle of a movie and my sister asks me a question. i turn down the volume of the fronts first, and only the front effects go away, so the dialogue is still interfering with our conversation. then i turn down the center. now i hear all bass from the subwoofer. i tell myself forget the bass... what were you asking? - do you want meat lover's or super supreme? ... arrrgggh!! now i have to run the speaker setup again... how many interruptions happen in one movie? 5x = PAIN...

but if you already have a receiver and your intent is to give your front 2 channels additional muscle by using the power amp section of your integrated amp (assuming it has power amp inputs), then a surplus is an economical way of doing it. just be aware that this is JUNK were talking about. as long as you understand what it is... you get it as-is so you can either choose to make a gamble, or save up for a bnew unit.

bro - madali lang yan, hit the pause button on the dvd player

sent you pm...

ArnieSwarzie · « **Reply #265 on:** Nov 13, 2003 at 03:41 PM »

Quote from: iceman90a on Nov 13, 2003 at 03:18 PM

bro - madali lang yan, hit the pause button on the dvd player

Yes, I agree. It takes a little creativity to overcome what seems to be a challenge. If I will build a cheap but using good branded amplifier, this I will do

purchase a generic DVD player like kebao that has DTS (3,200)
purchase 3 japanese branded amplifier in pier (say Sansui alpha507i at 2,500 each)
purchase a subwoofer amplifier (say sansui alpha 607i at 4,000)

The first amp will have my front and rear left channels
The second amp will have my front and rear right channels
The third amp will have my center channel
the fourth amp (607i) to have the SW input

Since they are identical amplifier, the gain is identical for all of them. So, I adjust all of them at 12 o'clock position. The subwoofer control maybe at different setting. Volume control of everybody will be from DVD player.

Your equivalent AVR is only 7,500. This is a highend system, even though they are surplus. And can compete head-on with any system below 30k in sonic performance.

akyatbundok · « **Reply #266 on:** Nov 13, 2003 at 04:17 PM »

Quote from: iceman90a on Nov 13, 2003 at 03:18 PM

bro - madali lang yan, hit the pause button on the dvd player

hehe onga naman iceman the simplest solution is always the best solution... yung binalak ko pa gawin ay bumili ng marker at guhitan yung favorite volume level ko sa movies. mas simple pa yung pause button.

iceman90a · « **Reply #267 on:** Nov 13, 2003 at 05:23 PM »

Quote from: ArnieSwarzie on Nov 13, 2003 at 03:41 PM

Yes, I agree. It takes a little creativity to overcome what seems to be a challenge. If I will build a cheap but using good branded amplifier, this I will do

purchase a generic DVD player like kebao that has DTS (3,200)
purchase 3 japanese branded amplifier in pier (say Sansui alpha507i at 2,500 each)
purchase a subwoofer amplifier (say sansui alpha 607i at 4,000)

The first amp will have my front and rear left channels
The second amp will have my front and rear right channels
The third amp will have my center channel
the fourth amp (607i) to have the SW input

Since they are identical amplifier, the gain is identical for all of them. So, I adjust all of them at 12 o'clock position. The subwoofer control maybe at different setting. Volume control of everybody will be from DVD player.

Your equivalent AVR is only 7,500. This is a highend system, even though they are surplus. And can compete head-on with any system below 30k in sonic performance.

i can honestly recommend you to not do this, save your money... i've tried this already

the digital decoder of the kebao is very harsh

a 2nd hand entry level receiver will still sound much better

akyatbundok · « **Reply #268 on:** Nov 13, 2003 at 07:56 PM »

Quote from: j_albert22 on Nov 12, 2003 at 03:17 PM

pwede na yung AU-alpha507i pero tanong ko kung may parating pang bago.......timbre ko na lang

pssst j_albert22, test niyo yan ha... siguraduhin niyo hindi yan kamatis! mura yan sa 2.5k pag amp ang mabili mo pero kung kamatis yan napakamahal na gulay yan!

eto checklist ko pag test ng kamatis este amp:

1) open the casing - check for evidence of replaced parts & excessive dirt
2) sound check 1 - set tone controls off then listen... if you dont like the sound don't buy it!
3) sound check 2 - turn it up loud... does it clip or distort?
4) left/right channel - both speakers working?
5) balance check - left and right are same tone & volume?
6) rust check - turn the knobs.. do static come out of the speakers?
7) power cord - is it cut or deformed? i've had both.. fire hazard!

j_albert22 · « **Reply #269 on:** Nov 14, 2003 at 07:46 AM »

Quote from: akyatbundok on Nov 13, 2003 at 07:56 PM

pssst j_albert22, test niyo yan ha... siguraduhin niyo hindi yan kamatis! mura yan sa 2.5k pag amp ang mabili mo pero kung kamatis yan napakamahal na gulay yan!

eto checklist ko pag test ng kamatis este amp:

1) open the casing - check for evidence of replaced parts & excessive dirt
2) sound check 1 - set tone controls off then listen... if you dont like the sound don't buy it!
3) sound check 2 - turn it up loud... does it clip or distort?
4) left/right channel - both speakers working?
5) balance check - left and right are same tone & volume?
6) rust check - turn the knobs.. do static come out of the speakers?
7) power cord - is it cut or deformed? i've had both.. fire hazard!

thanks sa iyong paalala and good input