Aphex 105 4-Channel Logic Assisted Gate

Aphex 105 4-Channel Logic Assisted Gate No Power Supply

Audio Logic 440 Quad Noise Gate Rack Mount Signal Processor 4-Ch 1U Key Input

DBX Professional Products DBX 266XL 2-Channel Compressor/Gate Dynamics Processor

Barcus-Berry Electronics BBE 202R Audio Processor / Exciter

Furman QN-44 QUAD NOISE GATE 4-Channel Signal Processor

DBX 1066 Dual-Channel Compressor / Limiter / Gate

BBE SONIC MAXIMIZER 822A SIGNAL PROCESSOR WITH XLR CABLES POWERS ON UNTESTED