EIGHT tracks?? Hell I remember when there were FOUR tracks. NO tracks!! (Well we had "reel to reel," but I remember when there WASN'T stereo.
Used to be called "HI-FI" meaning it was supposedly "high fidelity" but of course "hi-fi" got tagged onto a lot of junk that never deserved it.
My "big stuff" as a pair of Juke box amps (1 for each channel) that I'd junked out, push pull 6L6's in each amp. 14" speakers.
