Amp/Preamp Asylum

My Counterpoint preamps...

72.220.37.3

Cougar

In Reply to: RE: Potentiometer Change. posted by Jonesy on September 08, 2024 at 13:13:20

the SA-3.1 and SA-1000 both used 100k stereo pots with its balance control..

The MBL 6010D clone measures 100k on all 4 sections per Alps drawing and traced out each output the buffer to the pots. So they are using the 100K for each channel.

Follow Ups:

RE: My Counterpoint preamps... - Jonesy 13:28:01 09/09/24 (1)
I had an SA3 as well.

Yeah, I guess they are using all 4 decks of the quad potentiometer individually.

I thought maybe they were using 2 decks in parallel for the left channel, and 2 decks in parallel for the right channel for an attempt at overall better tracking tolerance. 2 wipers per channel.

If so, you may have been able to swap out the quad pot and configure one of the stereo ones you had on hand. Just need some math and maybe add/remove resistors.

I should have stated from the beginning.

Sorry I don't know what impact the different quad potentiometer values would have on circuitry in your 6010D.

Jonesy

"I know just enough to get into trouble. But not enough to get out of it."
- I will just purchase... - Cougar 19:51:28 09/10/24 (0)
  The GoldPoint quad pot either in a 25K or 100K value.

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