How do you amp your system?

Assume you are ony wanting to discuss home theater sound?
I have one Denon receiver 4806 and run it five channel no subwoofer. (it has seven equal channels of amplification available)
I use Canton CD300/CD360 speakers.
No sub as i live in an apartment in an 'over 55' building.
So any noise bothering anyone else would be unwanted by ME as much as by others.

Both the receiver and speakers were bought at a dealer 'garage blowout' sale at a really low price.
They are the last home theater setup i will ever buy unless the receiver breaks...) They sound great, have wonderful clarity and are all i want.

My two channel on the other hand is one Bryston 4B-SST2 amp biwired to my Magnepan 3.6 speakers.

Home stereo. 5.1 Arcam avr handles all but sub jl audio fathom f113

Main 2 channel rig

Bi amp

Tweeters/mids. Atmasphere ma-1. Output transformer less tube mono blocks

Woofers. Qsc bluelight 360. Volume adjusted

i used to run all separates for HT but have downgraded to a receiver. either way i would always want to power all my speakers with the SAME amp/receiver to insure proper timbre matching. sub powers itself.

however, it does boil down to your level of pickiness.