I had a pioneer system, A-80 amp. EQ, Tape deck with dolby b and c, DBX route selector, 3BX range expander, and DBX noise reduction. Also, a KLH active noise filter unit, that would quiet everything down when the signal was low and it would bypass when the music got cranking. This would pretty much make the tape hiss disappear . I still have the DBX units and KLH in storage..
