Separate volume controls for left & right channels

My linestage has dual volume controls and I love them. They`re very accurate and for me no hassle what so ever, very simple yet effective.

Has anyone found a reliable, practical system [commercial kit, Chinese from eBay, DIY from scratch, or just good-looking plans] for a mechanically linked dual VC, with the possibility of using really top shelf potentiometers, a dual shunt VC, or ideally, switched discrete resistor attenuators? You know, something with a belt connection, some kind of clutch, chain drive (!)... whatever. I'm not really thinking about some rare commercial product, but something along DIY lines. Thanks.

I had them on my Audioprism Mantissa preamp, but they were stepped and clearly marked....so no problem at all for me.

I liked the option on that preamp because I could turn one speaker off when doing testing.....and I did use them as a balance control when one of my ears would plug up a bit (every winter....in short spurts).

Dave

Seakayaker, here's a picture of the Ayre K1.

http://www.soundstage.com/revequip/ayre_k1xe_v1xe_followup.htm

Excellent idea. Should be standard on high end equipment.