which volume-pot for amp D?

[gychang]

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]

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

 

[Saturnus]

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]

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

 

[Saturnus]

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]

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]

search these forums for "jaycar pot".

col.

 

[rhing]

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.

 

[col]

Hi Rhing,

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...0?hash=item1c0bacc858&_trksid=p3286.m63.l1177

I could not find "tube_buyer".

cheers,
col.

 

[rhing]

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-and-Audio_Potentiometer-Volume-Control_W0QQ_fsubZ173635119QQ_sidZ40419QQ_trksidZp4634Q2ec0Q2em322

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.

 

[col]

Yes, they look identical. The "Gigawork" one has cheaper postage to Australia though. Iv'e ordered one, will let you know how I go.

col.

 

[gychang]

Re: 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.

is this the one?

http://cgi.ebay.com/SMT-Resistor-St...2122&_trksid=p4634.c0.m14.l1262#ht_2437wt_754

plan on trying one.

gychang

 

[rhing]

gychang,


That's the one!

I'm listening to my Virtue Two now with the stepped attenuator, and the tone is richer with a fuller bass. For 21-steps, the resistor values of each step were selected for nice control of the volume at low and high levels. The balance is really good providing a better image and soundstage.

 

[e_fortier]

Hi,

Where can I find this same type of pot but closer than Australia ?

http://www.jaycar.com.au/productResults.asp?FORM=KEYWORD

Anything bigger in size will not do, this is exactly what I'm looking for.

TIA,

Eric

 

[e_fortier]

The link does not work so the cat.no. is RP8760

Thanks,
Eric

 

[cheric]

E_fortier,
You can try to get these Alps pots on ebay. Their small size should fit your purpose nicely. They come in different value of 10k, 20k, 50k and 100k. Search ebay...

http://cgi.ebay.com/2PCS-ALPS-100K-...CI%2BIA%2BUA%2BFICS%2BUFI&otn=12&po=LVI&ps=54

 

[e_fortier]

The one I'm presently using are exactly those (same seller) but these are balance pot (not volume) therefore they kinda stop in the middle AND they are linear instead of log.

Eric

 

[cheric]

I am using these as volume pots and they are working fine. The title does say volume pots. Anyone has any comments?

 

[e_fortier]

The seller knows they are balance pot but still sells them as volume pot.

It works OK but linear is not the way to go in my opinion.

Regards,
Eric