which volume-pot for amp D?

gychang · 29th July 2009, 07:49 PM

I see 2 major catergories linear/audio pot. Some have on-off switch built in.

which one is ideal for the usual t-amp clone?, alps is mentioned but price seem little high.

which one from here seem reasonable?

http://www.action-electronics.com/pots.htm

thanks,

gychang

luka · 29th July 2009, 08:29 PM

any? what is the big deal, its only a pot, nothing else

Saturnus · 29th July 2009, 09:03 PM

Usually pots with built in on/off is much lower quality but if that is primary concern then an attunator, either with a rotating switch or a relay network is a much better solution.

audio1st · 29th July 2009, 09:09 PM

None of them seem suitable.. They are all mono.
You need a single turn, dual log, of a value between 10k to 100k.

Saturnus · 29th July 2009, 09:35 PM

Quote:

Originally posted by audio1st
None of them seem suitable.. They are all mono.
You need a single turn, dual log, of a value between 10k to 100k.

Wouldn't a 10K only give a 1.5dB dampening with a standard 1:1 resistor network? I'd say at least 50K Ohm.

gychang · 29th July 2009, 10:32 PM

Quote:

Originally posted by audio1st
None of them seem suitable.. They are all mono.
You need a single turn, dual log, of a value between 10k to 100k.

I thought was strange only one row of 3 prongs...

thanks,

gychang

col · 31st July 2009, 10:58 AM

search these forums for "jaycar pot".

col.

rhing · 5th August 2009, 02:24 PM

I bought a 50k log stepped attenuator from "tube_buyer" on eBay, and installed it on my Virtue Two Class D integrated amp. It has a nice solid feel and takes up very little space. It has the same footprint as a Noble or PEC pot. This little attenuator made a significant improvement in the sound quality over the stock volume pot in terms of transparency and improved frequency response. For $10 +$8 shipping, it was a great investment.

col · 5th August 2009, 10:24 PM

Hi Rhing,

Quote:

I bought a 50k log stepped attenuator from "tube_buyer" on eBay, and installed it on my Virtue Two Class D integrated amp. It has a nice solid feel and takes up very little space. It has the same footprint as a Noble or PEC pot. This little attenuator made a significant improvement in the sound quality over the stock volume pot in terms of transparency and improved frequency response. For $10 +$8 shipping, it was a great investment.

That sounds quite interesting. Is it the same as this:

http://cgi.ebay.com.au/DACT-Type-21-...3286.m63.l1177

I could not find "tube_buyer".

cheers,
col.

rhing · 5th August 2009, 10:52 PM

Hi Col,

It looks like the same SMD stepped attenuator to me. These guys could be the same sellers under different names. Their ratings are identical.

Here's a link to tube-buyer's stepped attenuators and pots on eBay:

http://stores.shop.ebay.com/Parts-an...34Q2ec0Q2em322

I just soldered some stripped solid core hook-up wire segments to the pads on each PCB of the stepped attenuator to create pins for soldering to my Virtue Two's PCB thru-holes where the stock volume pot was connected.

No pops, static or any noises from my unit. It sounds great.

29th July 2009, 07:49 PM	#1
gychang diyAudio Member Join Date: Feb 2005 Location: Phoenix, Arizona	which volume-pot for amp D? I see 2 major catergories linear/audio pot. Some have on-off switch built in. which one is ideal for the usual t-amp clone?, alps is mentioned but price seem little high. which one from here seem reasonable? http://www.action-electronics.com/pots.htm thanks, gychang

29th July 2009, 08:29 PM	#2
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	any? what is the big deal, its only a pot, nothing else __________________ home page @ http://www.classdaudio.co.cc @ 24/7 all year long I FEEL SLOVENIA

31st July 2009, 10:58 AM	#7
col diyAudio Member Join Date: Feb 2008 Location: Melbourne, Victoria, Australia	search these forums for "jaycar pot". col. __________________ http://www.minirig.org.au

5th August 2009, 02:24 PM	#8
rhing diyAudio Member Join Date: Jun 2007 Location: Bay Area, California	Bought this 50k SMD stepped attenuator on eBay I bought a 50k log stepped attenuator from "tube_buyer" on eBay, and installed it on my Virtue Two Class D integrated amp. It has a nice solid feel and takes up very little space. It has the same footprint as a Noble or PEC pot. This little attenuator made a significant improvement in the sound quality over the stock volume pot in terms of transparency and improved frequency response. For $10 +$8 shipping, it was a great investment. __________________ Rich

5th August 2009, 10:52 PM	#10
rhing diyAudio Member Join Date: Jun 2007 Location: Bay Area, California	Hi Col, It looks like the same SMD stepped attenuator to me. These guys could be the same sellers under different names. Their ratings are identical. Here's a link to tube-buyer's stepped attenuators and pots on eBay: http://stores.shop.ebay.com/Parts-an...34Q2ec0Q2em322 I just soldered some stripped solid core hook-up wire segments to the pads on each PCB of the stepped attenuator to create pins for soldering to my Virtue Two's PCB thru-holes where the stock volume pot was connected. No pops, static or any noises from my unit. It sounds great. __________________ Rich


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29th July 2009, 09:03 PM	#3
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	Usually pots with built in on/off is much lower quality but if that is primary concern then an attunator, either with a rotating switch or a relay network is a much better solution.

29th July 2009, 09:09 PM	#4
audio1st diyAudio Member Join Date: May 2005 Location: Foxton, CAMBS..	None of them seem suitable.. They are all mono. You need a single turn, dual log, of a value between 10k to 100k.

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