Digitech GSP2101 Studio Tube Preamp/Processor - No Foot Controller - GSP-2101

Digitech - GSP-2101 - Studio Tube Preamp Multi-Effects Processor & Case (28906)

Vintage Digitech GSP21 PRO With Original Pedalboard (no cables included)

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

Alesis M-EQ 230 Dual 1/3 Octave Precision Equalizer - Tested - Studio use only.

Digitech PPC210 Effects Expansion Board Card for GSP2101 Preamp Processor Test

Digitech GSP1101 Guitar Preamp / Processor Guitar Rack Effect Processor P-29180