Digitech Studio Quad 4 In 4 Out Multi-Effects Processor no Power Supply

Alesis Midiverb II Digital Multi-Effects Processor Rack Mount 2-Channel Reverb

Digitech Studio Quad 4x4 Multi-Effects Processor Rack with Power Supply

Digitech Studio Quad 4 V2 Multi Effects Processor Unit, UK Power Supply, Tested

Digitech Studio Quad 4 – Multi-Effects Processor Fully Working

DELTALAB EFFECTRON ADM 256 RACKMOUNT CHORUS/FLANGE/DELAY

DigiTech Studio Quad 4 In 4 Out Mutli Effects Processor

DigiTech TSR-24 Multi Effects Processor Rack Unit Guitar FX from Japan