Originally Posted by glancealot
I bought 4 in wall speakers:
6.5-inch Two-Way In-Wall Loudspeaker (Cat. No. SGI65-00W)
• 6.5-inch Kevlar composite cone low-frequency transducer
• .5-inch AeroNylon dome high-frequency transducer with
phase/time alignment guide
• 2-way balanced precision crossover network with
AutoSurge circuit protection
Frequency Response: 50-20kHz +/- 3dB
Sensitivity: 88.0 dB SPL @ 1Watt/
The sensitivity of these speakers is relatively low so they are unlikely to blow you away with the loudness, especially with only four of them.
Originally Posted by glancealot
Power Handling: 120W peak/60W RMS
Impedance: Nominal 8 Ohms/Minimum 6 Ohms
The HT-R2295 sources an honest 80wpc into 8 ohms and is nearly ideally matched to the power handling and impedance of these speakers.
The HT-R2295 has 5ampx120volt=600watt power consumption minus 70 watt no-sound power consumption = 530watt total power available for the amplifiers, of which a theoretical maximum of about 70% is available to drive speakers or 530x0.7=371 watts total available over all driven channels, divided by 4 channels =93 watts per channel so even with 4 channels driven it still has plenty of power supply to drive your four speakers...
...but adding a center channel or another set of surround or height speakers (or both) to increase your channel count will not really get you any more loudness and could result in some situations where the total loudness in the full surround stage when all channels are driven hard cannot keep up with the loudness capability of a single channel. Not likely to cause you any undue concern unless you really crave loudness. Every receiver has this inherent limitation. They never source the rated power into all channels simultaneously unless it is just a stereo receiver. The only way around this limitation is to use external amplification and I suspect you will not care anyway so it does not matter that the HT-R2295 has no preamp out for anything but the subwoofer.
The HT-R2295 has Audyssey 2EQ that is inferior room calibration because it does no EQ on the critical subwoofer channel. You should definitely use a subwoofer to take some load off the receiver and wall speakers and improve the bass extension, the difference is dramatic, and you should either make it a very flat subwoofer such as an SVS or should buy a better receiver with better EQ in one of the MultEQ versions of Audyssey (or equivalent) that EQs the subwoofer too.
Finally, the HT-R2295 is an Onkyo receiver. Onkyo has a history of HDMI failures that occur within the first 5 years and sometimes as little as 1 year. I personally own 6 failed Onkyo receivers of nearly all their HDMI vintages and spread over years of manufacture, including one that is relatively new. If you buy from an authorized reseller (check the Onkyo web site for a list) they might repair the HDMI for free if you complain loudly enough even if it is out of warranty, but still it is not the best plan to budget for a repair when buying new equipment IMO...
...and if you buy it used from a private party you might be out of luck on the free repairs entirely, like me.
Some people claim that Onkyo has addressed this issue already with better power management in the HDMI but I am of the opinion (based on my experiences) that such measures have only made the problem somewhat less severe than it used to be. IMO the issue is that their backplane is just too hot and crowded and it kills the electrolytic capacitors eventually. They could improve the power consumption or the cooling or the parts they use but so far it seems they have not solved the problem.
Ultimately you have to make a decision between price and quality. I am fine repairing my own receiver so I decide on price alone. YMMV.