I own a Sanyo DCX3300KA receiver. Matrix 1, 2/sq logic/discrete. Recently bought the JVC MD 1016T cartridge and the 4 channel stylus to go with it, all placed on my Technics SL 1300. I also own SQ albums made by Columbia records, as well as a couple of QuadraDisc Records made by RCA and Elektra. I am able to hear the depth of sound (dimensional and reverb sound) that I would be able to hear out of the Stereo Quadraphonic albums, but when I switch to discrete mode on the receiver for the albums with the four channel discrete sound, I’m only able to hear the two front channels. Keep in mind, I’m pretty new to this, and even though I’m fascinated by the sound, I don’t think I’m doing it right. Any help/advice?!