QUOTE(thales.of.miletus @ Jul 22 2021, 04:08 PM)
If i already have 2 pairs of active speakers (total of 4 speakers), what features should be my consideration when buying an av receiver if I wanna use those speakers instead of spending more?

i dun recommend active speaker + avr as combo
u can look for avr with multichannel preout.. if denon look for 3000 series and above.. hook your speaker using rca to amp.. so it can work normally like how the signal with go thru power amp. *might work this way but i never try before or never come across anyone doing this..
Unless you plan to place your speaker (all 4 of them) very close to the avr.. if that's the case you only need 2 no need 4.
If you plan to place your 1 pair of speaker as surround speaker, you need to consider if your power point and ur rca cable.. 1 thing bad about rca (unbalance) connection is they tends to be noisy if you run them for too long. You need to then invest on shielded RCA cable for longer run.. those cables can be expensive..
unless your speaker allows balance input (like mic connector also called XLR) else try to prevent from running long rca cables. Having said.. if you want to have balanced connectivity then its going to another level in HT. Only those high end AVR provides balance out.
Not to mention later point that you need to do audio leveling when you run your AVR calibration.
What active speakers you are using?
If you are serious about having an AVR might as well start investing passive speaker as well.. you need a center speaker also.. center is considered as the most important speaker for HT