Unused channels arent really a waste either because you usually get a bigger powersupply shared by fewer active channels.
Any Denon/Marantz models that feature Audyssey MultEQ XT32 (eg. X6500H which the OP is considering) will also feature Sub EQ HT. Note, however, that with two subs connected, although the level/delay of each sub is set independently, they are EQ'd together not separately.If you want to run 2 subwoofers and have "very good auto calibration software" look for an AVR with Audyssey's SubEQ HT. This will calibrate each subwoofer separately whereas some lesser AVRs with 2 outputs are just a Y splitter internally. Marantz, and I believe Denon, probably others.
Why do you feel you need that much power? What speakers are you using? Have you used lesser powered amps and heard distortion with your speakers at your desired listening level? Also keep in mind that HDMI 2.1 models should start being released summer 2020 which is why the 2018 X6500H and A3080 are not being replaced this year.Looking to build a 5.1 or 5.2 HT setup and need a great receiver dedicated to sports and movies. I would rather not run an external amp so looking for something in the 140-150 watts per channel range. Need something that plays well with 4K, HDR, and very good auto calibration software. Sound quality must be great for movies. Here is what I am considering so far:
Yamaha 3080
Denon 6500
Anthem 720
I know these are much more capable than 5.2, but want the flexibility to upgrade more speakers down the road should I choose. What else should I consider besides the above? $2Kish budget for the receiver. Also build quality and something that will last is highly important.
Anthem may have a slight edge with their room correction, but can't be expanded beyond 7.1/5.2.2. Both the X6500 and 3080 can process 11 channels. If you don't plan on going beyond 7 channels, Anthem would be an excellent option. If you need more than 7 channels, Denon's audyssey XT32 and dual sub HT gets my vote.Looking to build a 5.1 or 5.2 HT setup and need a great receiver dedicated to sports and movies. I would rather not run an external amp so looking for something in the 140-150 watts per channel range. Need something that plays well with 4K, HDR, and very good auto calibration software. Sound quality must be great for movies. Here is what I am considering so far:
Yamaha 3080
Denon 6500
Anthem 720
I know these are much more capable than 5.2, but want the flexibility to upgrade more speakers down the road should I choose. What else should I consider besides the above? $2Kish budget for the receiver. Also build quality and something that will last is highly important.