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
Dual volume control is an idea that I really like. It is technically a much more purist approach than balance control, I understand.
My Aesthetix Calypso Signature (listed on US Audiomart) has balance control.
Cary SLP 05. But I prefer to use the balance function on my PS Audio DirectStream DAC.