dual volume controls?

I prefer a single volume control and remote control. It's very difficult, in my opinion, to get the sound level correct when not at the listening position.

If you need a balance control something is wrong elsewhere in your system.

Another thing that some don't realize is the volume control has a large effect on the sound quality of the preamp. The more devices in line the less transparent the device is. This is the reason I am opposed to balance controls and tone controls. If they are out of the circuit when not in use, fine.

Needing a balance control does not always mean there is something wrong with the system. More likely than not it is a room problem that may be too difficult and expensive to cure. Very few audiophiles have the perfect room or even a decent room as is evident in system photos on this forum. In most cases the presence of a balance control is much less harmful than the room itself.

Dual volume controls have nothing to do with a dual mono design.

Agree that it usually (unless the stops are detented, as you cannot "fine tune" nearly as much) offers a better form of balance control.

Seems real inconvenient,why not take it a step further and have two mono block preamps with separate power supplies?