Originally Posted by angrynerdjosh
I replaced a cheap HTiB sub with the rythmik lv12r. Now I'm hoping someone can explain how to set it up properly. this is my first sub that actually has settings on it.
i've got the volume at about 80%
delay phase 0
lfe slope 12db
bass extension i've tried different ones but currently high
auto power on
on the AVR (denon avr-x2000) i have fronts as small
center as small
i think my bass/sub says -12db
crossover for all speakers is 80
bass is set to LFE. does that mean the bass is handled only by the sub?
to me it doesn't sound right. bass is clean. cleanest bass i've ever heard in a home. i told my wife the rumbles felt like Warren Theaters. I could hear bass booms in the street. I tested it out on Tron Legacy. My favorite film for audio and visual effects. It could be just the way the audio is in the film but at several times they were fighting or even when he was on the motorcycle (not the light cycle) that the lows sounded like they were coming from the front or centers. there was no "thud thud thud" from the bike on the sub or fighting sounds on the sub.
Set the volume on the sub MUCH lower, somewhere between 25 and 40%. As has been stated, the level after Audyssey should be 0dB.
Set the sub crossover all the way up ... the receiver will handle the crossover region. Using both will just confuse the issue.
Is the sub at the front of the room? If so, the phase setting at or near zero is correct. if it is in the back of the room, the phase should be set at or near 180.
Also, sub positioning is the most important thing you can do to improve the bass in your room. Look up the "sub crawl" on this site and follow the directions. You are NOT looking for the loudest bass, you are looking for the most even bass you can get across the frequency spectrum. To that end, a test cd and dB meter from Radio Shack, or pc based software/microphone system, is the best way to verify what you are hearing.
As others have said, you are used to one-note "BOOMY" bass. That is BAD bass, like what you hear when when a teen's car goes by. Thump is NOT what you want out of your new, sub. What you want is integration, the ability to reproduce subtleties (yes, good bass has subtleties), and clean, tight response at every frequency.
The reason you are not hearing some of the bass response you are expecting from your test movie is because the current position of the sub is not conducive to even bass response. There are "holes" in the response at your seating position. Fix the positioning issue and you will find that the problem is solved.