Author Topic: A way to maximize your speakers (Read 50205 times)

Courage · « **Reply #180 on:** Apr 05, 2011 at 01:12 AM »

Nagdugo ang ilong mata at tenga ko dito sa thread na to. You guys are amazing....

Wildfire™ · « **Reply #181 on:** Apr 19, 2011 at 07:23 PM »

ayos to ah matry nga one of this days

rascal101 · « **Reply #182 on:** Apr 21, 2011 at 12:59 PM »

Let me just share my experience dealing with polystyrene and polypropelene caps.

On tweeters, we are usually confronted with a series capacitor from 1uF to 10uF. Usually, the capacitors used are non-polar electrolytic capacitors.

The typical approach is to replace this with boutique or premium polypropelene capacitors like Mundorf, Auricap etc. For those on tight budget one approach to achieve more or less similar performance would be to:

(1) Replace the non-polar capacitor with similar value polypropelene like Audiophiler or those yellow cylindrical capacitors (generic polypropelene) and parallel a 1nF or 10nF polypropelene cap - either Ero KT 1801, Evox PFR or Vishay MKP1837. You can find the Ero capacitor at Spin Electronics. The Evox and Vishay at RS Online.

(2) Parallel a polystyrene with a value 1/100 or 1/1000 of the polypropelene with a series resistor so it becomes an RC. From experience, this means parallel a 100pF polystyrene in series with a 1.5K or 2K 5W resistor. You can find the polystyrene capacitor at Spin Electronics. The resistors at Alexan, Deeco etc.

ultramanxp · « **Reply #183 on:** Jun 21, 2011 at 12:51 PM »

pwede kaya to sa isang creative 5.1 pc speaker?

rascal101 · « **Reply #184 on:** Jun 21, 2011 at 09:04 PM »

^Puwede po Sir.

ultramanxp · « **Reply #185 on:** Jun 23, 2011 at 02:25 PM »

Quote from: rascal101 on Jun 21, 2011 at 09:04 PM

^Puwede po Sir.

waaaw!!

pero saan ko ikakabit yung 'hack'? dami kc wires nun since 5.1 at yung cable from pc to speakers ay 3? hmm

Ron_21 · « **Reply #186 on:** Jul 11, 2011 at 04:00 AM »

Sir, bago lang here. PaPM naman po ng pang 3way. astig eh..gusto ko dn subukan.

rascal101 · « **Reply #187 on:** Jul 12, 2011 at 04:34 AM »

^Sent you PM.

Ron_21 · « **Reply #188 on:** Jul 12, 2011 at 08:56 PM »

thank you sir..got your PM

koncee020 · « **Reply #189 on:** Jul 28, 2011 at 04:08 AM »

sir newbie po, gusto ko po sana subukan pa pm naman po pag 3way speaker. salamat po.

koncee020 · « **Reply #190 on:** Jul 29, 2011 at 12:07 AM »

salamat po sir rascal

rascal101 · « **Reply #191 on:** May 10, 2015 at 06:10 PM »

Nothing better to do on a lazy Sunday afternoon.

New tweeter crossover for the Edifier R1000TC low cost speaker. Original was a 3.3uF/25V generic electrolytic capacitor.

tagilid · « **Reply #192 on:** May 12, 2015 at 12:34 PM »

nice!

rascal101 · « **Reply #193 on:** May 13, 2015 at 10:09 AM »

Medyo napagastos dahil gumamit ako ng 4 piraso na 6.8uF/100V Wima MKP imbes na 2 piraso lang. Wala kasi ako 3.3uF MKP/100V.

Iyung mga choke galing sa isang strand sa LAN cable.

Mas katanggap tanggap na ang tunog kumpara noong naka 3.3uF electrolytic capacitor.

rascal101 · « **Reply #194 on:** May 14, 2015 at 05:23 AM »

Malaki din epekto sa tunog noong paglagay ng R-C filter (4.7ohm - 100nF o 0.1uF) papuntang ground sa may L at R output ng TDA7269A na gamit ng Edifier R1000TC. Ito kasi nakasaad sa application notes ng TDA7269A.

Iba din tunog kapag iyung R ay 3.3ohm. Medyo matinis at parang may garalgal sa tunog kaya napilitan ako bumili ng 4.7ohm resistor. Kala ko ok na iyung 3.3ohm kasi malapit naman.

psychro · « **Reply #195 on:** May 14, 2015 at 11:46 AM »

Subscribe

rascal101 · « **Reply #196 on:** May 14, 2015 at 02:07 PM »

Schematic diagram

The 4.7ohm resistor and 100nF polypropelene is the R-C snubber.

Just FYI, normally this kind of circuit is used at switched mode power supplies across the the secondary rectifier to reduce peak reverse voltage when the rectifier is off. Without the R-C snubber, the rectifier may become very hot and fail over time.

synchro_01 · « **Reply #197 on:** Feb 27, 2016 at 05:58 AM »

Lets update this thread. Looking at the Speakers threads one will notice members talking about brands of speakers however very little discussion goes into extracting the performance of those speaker brands through proper placement. Setting up speakers incorrectly degrades the performance of all speakers regardless of brand and cost.

Here is a very handy device that I have been using to tune the vertical and horizontal axis of my set ups including adjusting speaker rake, toe in/out, distance to boundaries etc. Whats unique about this tool is that it has a built in pump that enables the entire tool to stick on top or sides of the speakers thereby making the adjustments so easy.

Ryobi Air grip laser level

https://www.ryobitools.com/products/details/670

Its the best USD20.00 investment that I bought in improving my system.

Nelson de Leon · « **Reply #198 on:** Feb 27, 2016 at 08:57 AM »

Quote from: synchro_01 on Feb 27, 2016 at 05:58 AM

Lets update this thread. Looking at the Speakers threads one will notice members talking about brands of speakers however very little discussion goes into extracting the performance of those speaker brands through proper placement. Setting up speakers incorrectly degrades the performance of all speakers regardless of brand and cost.

Here is a very handy device that I have been using to tune the vertical and horizontal axis of my set ups including adjusting speaker rake, toe in/out, distance to boundaries etc. Whats unique about this tool is that it has a built in pump that enables the entire tool to stick on top or sides of the speakers thereby making the adjustments so easy.

Ryobi Air grip laser level

https://www.ryobitools.com/products/details/670

Its the best USD20.00 investment that I bought in improving my system.

I have a similar device and haven't thought of using it the way you did. Hehe! Thanks! Hindi lang pang-construction, pang audio pa!

synchro_01 · « **Reply #199 on:** Feb 27, 2016 at 10:43 AM »

Quote from: Nelson de Leon on Feb 27, 2016 at 08:57 AM

I have a similar device and haven't thought of using it the way you did. Hehe! Thanks! Hindi lang pang-construction, pang audio pa!

I saw it being used back in 2014 CES by technicians who where setting up a Sonus Faber system. I arrived early and while I was in the room looking at their gears they managed to dial in positioning in a manner of minutes using this tool. They were able to adjust room boundary to the speakers from the rear and sides, adjust toe in and rake. Masking tape na sa sahig ang kasunod. Very ingenious use.

rascal101 · « **Reply #200 on:** Feb 27, 2016 at 11:23 AM »

Quote from: synchro_01 on Feb 27, 2016 at 05:58 AM

Lets update this thread. Looking at the Speakers threads one will notice members talking about brands of speakers however very little discussion goes into extracting the performance of those speaker brands through proper placement. Setting up speakers incorrectly degrades the performance of all speakers regardless of brand and cost.

Here is a very handy device that I have been using to tune the vertical and horizontal axis of my set ups including adjusting speaker rake, toe in/out, distance to boundaries etc. Whats unique about this tool is that it has a built in pump that enables the entire tool to stick on top or sides of the speakers thereby making the adjustments so easy.

Ryobi Air grip laser level

https://www.ryobitools.com/products/details/670

Its the best USD20.00 investment that I bought in improving my system.

May nagbebenta kaya nito sa Pilipinas?

Nelson de Leon · « **Reply #201 on:** Feb 27, 2016 at 02:05 PM »

Quote from: rascal101 on Feb 27, 2016 at 11:23 AM

May nagbebenta kaya nito sa Pilipinas?

Kung wala, ordinary level na lang.

synchro_01 · « **Reply #202 on:** Feb 28, 2016 at 12:08 AM »

Saw one before in true value. An ordinary level wont work. It has to have the laser function and it has to be adjustable for horizontal or vertical beam.

Nelson de Leon · « **Reply #203 on:** Feb 28, 2016 at 01:40 AM »

I have this one:

synchro_01 · « **Reply #204 on:** Feb 28, 2016 at 01:59 AM »

Quote from: Nelson de Leon on Feb 28, 2016 at 01:40 AM

I have this one:

Exactly. That will do fine.

rascal101 · « **Reply #205 on:** Aug 04, 2016 at 08:02 PM »

Binasa ko iyung mga naunang sinulat ko dati. Nosebleed din ako ngayon habang binabasa siya.

Kung pinakita ko na lang mga litrato ng epekto ng meron RC snubber at wala sana natapos na ng mas maaga diskusyon.

Pero para mabuhay ulit ang usap usapan sana may iba ring magpayo kung ano pamamaraan nila para maipalabas ang tunay na anyo o galing ng kanilang speaker.

ehchad · « **Reply #206 on:** Sep 10, 2016 at 08:51 AM »

sir, pwede ba yung snubber circuit nyo sa JBL L40? 2 way sya at di pa nagagalaw yung dividing network, gumagana pa rin yung high frequency control. ano magandang upgrade para sa JBL L40?

this thread is, BTW, a very nice read for the weekend. thanks for sharing.

stratix2 · « **Reply #207 on:** Sep 11, 2016 at 03:45 AM »

I just stumbled upon these exchanges... nose and ear bleed but hats off and many thanks to rascal101 for sharing his expertise... parang differential equation explained in a way that you will love the subject more than hating it... will try this too...soon....

Sent from my SM-N910W8 using Tapatalk

rascal101 · « **Reply #208 on:** Sep 11, 2016 at 06:16 AM »

Quote from: ehcob on Sep 10, 2016 at 08:51 AM

sir, pwede ba yung snubber circuit nyo sa JBL L40? 2 way sya at di pa nagagalaw yung dividing network, gumagana pa rin yung high frequency control. ano magandang upgrade para sa JBL L40?

this thread is, BTW, a very nice read for the weekend. thanks for sharing.

Puwede naman Sir. I-adjust mo na lang mga values base sa pandinig mo.

ehchad · « **Reply #209 on:** Sep 14, 2016 at 11:50 AM »

Quote from: rascal101 on Sep 11, 2016 at 06:16 AM

Puwede naman Sir. I-adjust mo na lang mga values base sa pandinig mo.

thanks! subukan ko one day.