4-Channel Audio Decoder (1975-77)
The Marantz model SQA-2B 4-channel decoder is specifically designed for plug-in use with those Marantz audio components which feature the appropriate under-chassis recess (pocket) and multi connector.
The SQA-2B contains a CBS-SQ system decoding matrix, a phase shifter, and a full logic circuit to enhance channel separation.
When equipped with the module, a 4-channel component offers full SQ system decoding capability.
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Marantz Quadraphonic Processors