4-channel QM Decoder/Amplifier S.C.-410 Decodes almost any type of encoded matrix 4-channel discs at four modes of 4-channel effect. D...

To compose an ideal 4-channel stereo system, the QX-8000A, a solid state AM/FM stereo receiver, can be combined with four speaker systems,...

The concept is simple. The execution is precise. The performance is outstanding - the name is Technics. The SA-8500X - first 4-channel ...

  A new four-channel stereo receiver capable of decoding all kind of matrixed program sources into a living presence sound field. A tre...

  The rich, treasure-laden sound of 4-channel stereo is a listening treat you should not miss. Kenwood's KA-3344 multi-purpose amplif...

  4-Channel Stereo Receiver 4-channel Dolby recording and payback  with an ordinary tape deck for first time in audio history. This is ...

A single unit, four-channel preamplifier with unique Quadralizer for the creation of a living presence sound field in the home. Quadraphon...

The Pioneer Quadraphonic Power Amplifier, model QM-800 is designed to serve in a 4-channel stereo installation, together with a 4-channel pr...