I'll do a sketch and send it in …

Of note, the amp (which I still have & is 6V6) has Volume, Bass, Treble …. and Variable Loudness knob. That might explain the weird configuration.

I'm looking to refurbish an old Magnavox 2x6V6 stereo console and the speaker wiring makes no sense … I know enough to be dangerous. The right side has a 15" and a 8? (might be 6) an a 4" … The left side has the same 15" but with two 4"'s (all the same 4") wired in parallel ...