DigiTech DSP 16 Effects Processor 1991 - Black Blue

A few rack marks and that’s it. Serial number indicates Salt Lake City Utah on 5/91 in the DoD factory. Works like a charm! No hiss and no buzz. Look at that clean circuitry. Doesn’t look like he ever even turned it on. I like this model as it has NO internal battery to ever leak or fail. Cord included.
Specs-

• Factory Algorithm Types: 16 distinct digital effects groups (Room, Hall, Plate, and Gated Reverbs; Short, Medium, and Long Delays)
• Total Memory Presets: 128 programs [1]

Front Panel Interface

• Controls: Input Level, Mix (Dry/Effect), Output Level, and Program selection knob
• Equalization: 3-Band Graphic EQ slider controls (Low, Mid, High)
• Visual Indicators: 4-stage LED ladder (Signal present to Clip) [1]

Rear Panel Connections

• Audio Inputs: 2 x 1/4" phone jacks (Left/Mono and Right)
• Audio Outputs: 2 x 1/4" phone jacks (Left/Mono and Right)
• Footswitch: 1/4" jack (compatible with standard single-button latching/unlatching switch or DigiTech FS300)
• MIDI Interface: 5-pin DIN (MIDI IN only) for receiving external program change commands [1]