Help with headphone amplifier

[moho]

I'm looking to use the auxilaries on my desk to give a headhone mix to the musicians. However the aux's are mono outs and the headphone amp has six stereo left and right inputs. Is there any way of either A) getting stereo to the headphone amp using the desk or B) just give a mono signal but have both ears of the headphone working rather than just the left?

I'm using a mackie 1640 desk.

 

[Lt. Bob]

just use an adapter that'll take the single mono line and split it into two sends which you can put in each input giving you mono to both sides. Probably about #3.95 at Radio Shack