[00940]

arteitle : thanks a lot, that's a hell of a deal.

mmmh a pair of mono attenuators would be so nice on my RKV

 

[00940]

I'll go for a pair of mono. here is the email i received from the seller :

"yes, i can build 50K attenuator
stereo is USD:49.99
mono pair is USD:57.30"

For this price, I'd have to be crazy to refuse

 

[phaedrus]

What is the difference between going with a pair of mono vs. a stereo stepped attenuator?

 

[00940]

i plan to add a passive output to the amp, a dual mono config is easier to adjust a bit the balance and prevent any crosstalk between the channel.

 

[Gariver]

What about the Hong Kong Alps? These turned out to be inexpensive stepped attenutors.

http://www4.head-fi.org/forums/showt...ong+attenuator

Remember???

 

[00940]

well, yes but :

1st : soundwize they only compare to the alps blue according to reviews;
2nd : the shaft is "unusual";
3rd : they're not ladder type and don't use high quality resistors
4th : solidity and lifetime aren't that great according to some reports;
5th : you're not sure to get the one you want, you could have to order more;
6th : channel matching is not that great according to Tangent findings.

edit : furthermore, it's now established that they're not alps but are coming from a chinese factory, the link was given in another thread

 

[erix]

The masochist in me wants to build this so bad it hurts....

But $56 imakes my wallet happier.

ok,
erix

 

[phaedrus]

i'm with erix -- my head is trying to convince my visa card that this would be a "fun" thing to do...

 

[morsel]

Has anyone compared the feel of Grayhill .vs. Elma rotary switches?

In other news, Elma is now selling their own stepped attenuators, with either leaded or surface mount resistors. Sorry for the lack of specific links, the Elma website seems broken - copied links do not bring up the appropriate pages.

Elma Rotary Switches

Series A

Series N

Series R

 

[Squalish]

Damn good prices, all.

 

[BoyElroy]

00940--

Thanks a bunch for the link! I just bought one of the stereo 100K attenuators this morning. Can't wait to put it inoto my modded Harman Kardon 930

 

[JohnFerrier]

Quote:

Originally posted by morsel In other news, Elma is now selling their own stepped attenuators, with either leaded or surface mount resistors.

I was at Elma's site recently and couldn't "make heads or tails" out of all the options. Thanks for narrowing the selection. I like that series R ladder attenuator.


JF

 

[Voodoochile]

If you look at the offerings by Percy Audio, he notes that there are a couple different Elma switches (for example), one which is more money, but has zero contact bounce, and is designed specifically for attenuator construction. Many are still made on the otherwise similar Elma that does have bounce.

In the earlier post talking about the stepped fake alps attenuators (the drawbacks), it should be noticed that there is a clicking to be heard when changing the volume. Some don't mind it, but I found it unsuitable. These must have massive contact bounce! I bought a a pair of them, and one is installed in a META I use in my workbench for tesing purposes. I hate the stepped Alps in it. The $3 Panasonic pot would be an upgrade overall, of not in channel matching. Buyer beware the fake Alps.