Pot impedance

FraGGleR · 1977

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Offline FraGGleR

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on: April 07, 2013, 09:34:56 AM
Me again!  I was able to get my hands on an Alps RK40 "Black Beauty" stereo pot and wanted to see what it did for the S.E.X. 2.1 that I have.  Problem is that it is a 50K pot, not 100K.  Will this be a problem?  Are there adjustments I should make to the circuit?  Should I just use it in a different build?

Thanks!

Resonessence Concero -> Bottlehead S.E.X. 2.1 -> HD800

Offline Jim R.

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Reply #1 on: April 07, 2013, 10:18:03 AM
No problem at all -- go for it!

-- Jim

Jim Rebman -- recovering audiophile

Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).

s.e.x. 2.1 under construction.  Want list: Stereomour II

All ICs homemade (speaker and power next)

Offline Grainger49

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Reply #2 on: April 07, 2013, 10:19:56 AM
That shouldn't be a problem.  50k is going to be the input impedance.  Sources will be happy with that.  It should not make a difference to the input of the first stage either.

I have one, still virgin, that I need to break out.

Let me know what you think.


Offline adamct

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Reply #3 on: May 17, 2013, 08:13:07 AM
While not a black beauty, I'm considering installing this pot in my S.E.X.: http://www.mouser.com/Search/ProductDetail.aspx?R=RK27112A0A16virtualkey68800000virtualkey688-RK27112A0A16

Can anyone confirm this is an appropriate model? I'm fairly confident it is, but could use some reassurance before I order it...

Thanks!
Adam


Offline Paul Birkeland

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Reply #4 on: May 17, 2013, 12:31:19 PM
Yes, that is a suitable replacement.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline adamct

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Reply #5 on: May 17, 2013, 02:00:20 PM
As always, many thanks Paul.


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