Preamps with separate L/R volume controls


Does anyone know of quality preamps, other than Audible Illusions, that have separate Left / Right volume controls?
beisner
The Questyle "Golden Reference System" dual mono setup has separate volume controls for each channel.

Some of the Parasound Halo amps have gain knobs for each channel, as do the pro versions of Bryston amps.
Morrison Elad, no longer in production but sometimes available and very good.
MFA Magus (three versions). In addition to the left and right controls, it has a main volume dial. Mine works fine but they are impossible to find.