Dolby Noise Reduction System 364-1 Rack Mount w/A Type Module

Dolby Type A— Cat No. 22 Card / Noise Reduction Module

Dolby 360 NR unit incl Dolby A cat 22 card

Ashly XR1000 Electronic Crossover Stereo 2-Way / Mono 3-Way | Made in USA

Alesis Midiverb 4 24 bit, Dual Channel Parallel Processor, Rev

Dolby A-Type Cat 22 Card Noise Reduction Module

LOT OF 4 WORKING DOLBY A-TYPE NOISE REDUCTION MODULE CAT. NO. 22

Dolby A-Type Cat 22 Card Noise Reduction Module Pair