A few examples of appraisal values for
POLYPHONIC

• A GRATEFUL DEAD ALESIS QS8
  A GRATEFUL DEAD ALESIS QS8 ELECTRONIC CONTROLLER SYNTHESIZER KEYBOARDA Grateful Dead Alesis QS8 electronic controller synthesizer keyboard, 1997 Marked with sticker to verso: Alesis Quality Control by Jose V. / Mfr. date 3-3-97; appears to have no serial number present Used by Vince Welnick with The Grateful Dead, the 88 weighted key, 64-voice polyphonic synthesizer with LCD display, pitch and modulation wheels, four stereo outputs, four control sliders, discrete MIDI in, out, and through ports, three expression pedal inputs, an ADAT optical digital output, a 48kHz clock input, and two PCMCIA expansion card slots, with 16MB of ROM, housed in a metal chassis with painted black oak end pieces, electrified Dimensions: 4.874" H x 50.125" W x 14.125" D