PMB-1 Professional Master Blender
(no longer available)
Type: preamp, dual channel/blender
Features: Instrument channel (10Meg Ohms) + auxiliary/microphone input (820K Ohms) with 9V phantom power, stereo input, phase switch; gain/bass/mid/treble controls, 2 x 9V battery or AC adapter powered

www.raven-labs.com