Originally Posted by Vikram Iyengar
Thanks. (1) Could be. (2) Done and made no difference. (3) Both large as well as cut off at 80 Hz with no sub. Cut off is slightly clearer but the noise I hear is mid and higher freqs anyway. (4) AVR calibration does nothing but set center to -6 dB, nothing else. (5) I bump up center to 0 dB and nothing else.
Pulled the center and s15 away from wall and immediately became much thinner sound and tinny. Maybe my open floorplan is adding more space than I realize. Although the room is 12 X 13, the entire right wall and portions of front wall and rear wall is open to 2750 sq ft house.
Also due to WAF, my listening is at 60 dB. Maybe all the rich sound is just escaping before hitting my ears at 11 ft from speakers? I returned the Google Home Max and Sonos Play5 becuase though it was ok, I felt I could do better with an AVR and larger speakers. But the sound from the s15 is less rich than those 2 powered speakers.
Decided against Polk hts10 due to many issues with auto on and some saying boomy. Deciding between non-ported SVS 1000, RSL speedwoofer, and rhythmik subs. Thanks again.
You wouldn't need to set a crossover for the S15s if you have them set to full band/large, AFAIK
. I'm not wholly familiar with the settings you would generally use for the centre or any surrounds you may have when not using a sub, so it could be you might be better to set everything to large (but please get confirmation from another, more experienced person here)? I only say that because without a sub, there's really no bass management going on.
I listened to the one example you cited, and I didn't hear any of the noise you described. Is it constant or only sometimes during the song? If you're doing am A/B comparison between the S15s and a $9 pair of headphones/factory radio, it could even be that you're hearing more of the cymbals that you were on that other equipment (if you're describing what sounds like pink/white noise to you).
I'm assuming you're setting your mic for the room calibration at the main listening position? What does it sound like if you leave the settings alone once the calibration is complete? What dB setting is it assigning the other speakers?
I probably wouldn't say that the sound became "tinny" of "thin" when you pulled the speakers away from the wall - there was obviously some resonance from the walls that boosted the bass frequencies a bit, and pulling the speakers away is probably giving you a truer sense of what the speakers sound like. Adding a subwoofer will eliminate any issues you might have with any apparent lack of bass.
To my knowledge, the size of the room only really applies to subwoofers, but the space being an open floor plan might have somewhat of an effect especially if happens to be an echo-y space. If you're sitting 11 feet away, and listening at 60dB (if that's what an SPL meter measures from where you're sitting), that can also factor into the equation. I listen at around the same dB level, but I am also only about 6 feet away from my speakers (which means my master volume level would be technically lower than yours since you'd have to turn it up louder to reach 60dB from 11 feet away).
There are issues with Auto On no matter what sub you choose, and how "boomy" a sub gets all depends on its placement - a sealed sub will still sound "boomy" if it's placed in an area that reinforces those bass frequencies. It's going to be boomier if you stick it in a corner compared to an area where there's more open space around sub. Honestly, if you have the budget, the Rythmik sub is probably your no-brainer choice.