I have a Denon 4520 with PSB Syncrony Ones and 2 Velodyne SC12's. My room is small ( 15w x 18L ) and my seating position is against the wall. When i calibrate, it take up to 14dbaway from my main speakers from 80hz and down. It then sets my xover on my mains at 40hx. The sound i get is total loss of bottom end. It almost sounds like the sub is out of phase. When i raise the xover to 80hz, it sounds much better and how it should be ( although i add 3-5db to my sub ) Is there a way to keep the calibration from pulling so much away from the main speakers?
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The first place to start is with the proper measurement pattern:
If the couch is close to the back wall then the mic should be moved forward to be at least 18" from the back wall for all measurements.
The level is being set to reference, so in a small room with highly efficient speakers, they will have to be turned down significantly to reach reference level. Levels are just relative numbers. If you want to play louder just turn the master volume up.
If the crossover is set to 40 Hz then all content below that is sent to the subwoofer. The sub must be set up correctly prior to running MultEQ as described here:
Nothing is being "pulled away". If you want to set the crossover higher than what the measurements show then it's OK to do so.
This is what im seeing. Ive calibrated my sub correctly and have plugged the 3 ports on each main speaker.
www.tmrmzine.com/audyssey.jpg and www.tmrmzine.com/denon.jpg
When i calibrate, i do it at 20" from the rear wall. When i leave it at the set xover ( 40hz ) There is very low bass, almost sounds out of phase. I have blocked the ports on my main speakers and set the xover to 80 and that seems ok but i still find myself turning the sub gain up a few db. Is there anyway to tell Audyssey not to kill all the bass from the mains and stil calibrate?
I dont know why my first link goes to a craigslist add and i can not edit it.....
Audyssey is not killing any bass. It is making the speaker response flat as it is in the studio. If you are used to listening to a big bump in the bass (typical for small rooms) then a flat response will sound bass shy. There is no way to tell Audyssey not to do its job and calibrate to flat... You can, however, turn up the subwoofer level if you prefer higher than reference bass levels.