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Passive volume control for Perreaux Amp

PostPosted: Mon Oct 17, 2011 10:37 am
by Alistair
I just bought an older Perreaux amp to use with my NS10's- it's on the way down here via courier now, and whilst it's one of their early models, I'm hoping it still lives up to their reputation as great amps.

I flick between using the NS10's and a bunch of other speakers, but have noticed there is no volume control on this amp (manual here http://www.perreaux.com/assets/file/archive/025-PMF2000.pdf )

If I want to have some volume control so I can match the NS10's to the volume of my other speakers etc, is it as simple as just sticking a pair of 10k pots in between monitor controller and amp inputs, or are there other components I should include to make it as transparent as possible?

Re: Passive volume control for Perreaux Amp

PostPosted: Mon Oct 17, 2011 11:41 am
by waitup
I'd just pinch the volume control part of the circuit from this: http://proharmonic.com/articles/AT78_OTB.pdf

You could do it with 2 pots, or one good quality dual gang pot.

Nick

Re: Passive volume control for Perreaux Amp

PostPosted: Mon Oct 17, 2011 11:48 am
by Alistair
Doh! I've built that before, I should have thought of just pinching that!
Will definitely use two pots to control L/R balance- I know everything should be putting out the same volume, but "should" and reality are often different things!