DBX Model 222 Type II Tape Noise Reduction System Recording Technology Series

Vintage dbx 224 Simultaneous Encode/Decode Type II Tape Noise Reduction System

DBX dbx 150 NOISE REDUCTION SYSTEM

DBX MODEL 140A NOISE REDUCTION SYSTEM Encoder/decode Two-Channel Type II

DBX 180 VINTAGE Dual TYPE 1 Noise Reduction Unit TESTED

DBX II 122 noise reduction system

DOLBY MODEL 363 SR/A NOISE REDUCTION UNIT