Question Can you tell me if I can use unbalanced jack cables with the D-Two delay unit without degrading the sound quality or damaging the unit. I want to connect the unit to my guitar rig, and none of the connections are balanced.

Yes, you can the use the D-Two balanced or unbalanced without compromising the quality of the sound. When using unbalanced connections, simply use a standard mono 1/4" jack cable to connect the D-Two, and the D-Two will automatically make the signal unbalanced.