Arny, you realize you are wasting your time with all this ABX
nonsense, don't you?

Why don't you leave audio alone and design something useful, such as a
good 5 speed transaxle swap for Corvairs or a good reduction drive to
put Chevy, Ford or Mopar V8s in homebuilt airplanes? Or hell, maybe
just a good Ben-Wa ball recovery system saving women embarrassing trips
to the gyno?