True story:Part of my income is derived from buying/ selling used AV equipment and the occasional appliance and "souvenir" (live rural so John Deere/Formally related). I attend tons of auctions (prefer estate).Anyway, ran across some McIntosh amps once. They were dead, so I got them for a song...
Speaker levels are room specific. I try to get the AVR trim(the -5 you have) inside +/- 3. The closer to zero you can that, the better(it may take a few days. The F12 Will need around 50hrs to truly liven up...where it is now...leave it. Try again in April).But yeah, big improvement.
You don't have to buy a new one. Since you don't have 3D, you can go as old as Onkyo X05 and Denon XX09/X89.Such as Onkyo 705/805.Denon 1909/989.Denon model numbers get fuzzy once you are back that far.But any 4 digit starting 19 or 3 digit starting 7 is a safe bet.Easy to find...
I live in Lowell/Hebron(have a house in each place...the Hebron address is 5 miles from Lowell, 14 from Hebron...and the Lowell address is "in" Shelby)
Then run the cheap amp to the 10, 10 to the other speakers. Done.That is what the high level is for. The 10 probably has an internal 80hz pre set crossover on the way out.
What you've done is improve the audio immensely. You could(and no, I don't recommend doing this for a PoSW10) get an external crossover (Behringer crossover on Amazon) for another $100 And set the AVR at 80.Than set the external crossover at 50-60.Letting the F12 play low and the 10 play sorta high.
That PSW10 Just got kicked to the curb with the addition of the Pio AJ.I doubt it will do anything, that you'll notice.Dayton sub1200. Or BIC v1220/F12.