Here's another killer 4-track: The Audio-Technica RMX64 – Preservation Sound
Audio-Technica AT-RMX64 4 Track Cassette Recorder 6 Channel Mixer Photo #520432 - US Audio Mart
You and me" by Ivan Rakocevic, audio technica at rmx64 - YouTube
The wonderful music of: Free Country - Recording a new song called “Orphan Team” using my #audiotechnica RMX64. A monster 4-track from the early 80's that weighs 50 lbs and has a
Audio Technica AT-RMX64 Cassette 4-Track Recorder - Evolution Music