Originally Posted by robertoa1a
I just purchased a second matching psw2500 sub-woofer and It made big difference.
The single 10" sub provided adequate tight bass and was never muddy or boomy. The problem was that bass only seemed like it was coming from the speaker that it was in phase with at crossover point (120hz). If I moved the woofer then an other speaker sounded connected and the others didn't.
Now I positioned the two subs at the left and right, mid point in the room, ran Audyssey and that seem to be the cure. And all 7 speakers seem to be commanding the low frequencies!
Secondly, I don't have to worry about bottoming out the driver as much and am capable of producing bass at higher volumes.
Third, Out of curiosity I broke out the sound level meter and discovered that the two woofers I didn't get a 3db roll off until 24Hz, apposed to the rated 32Hz of a single psw 2500.
An added bonus was when I left the room (music still playing) Most of the bass was gone with only the deepest bass present (Wave cancellation), nice.
A larger sub would provide as much bass as both of the smaller ones but at twice the cost. IMO the two provide more than the sum of their parts though I would never put an inadequate sub in the equation.
Great post here. Can you shed some light on your calibration here? Here are my questions,
1) What receiver?
2) Did you use a Y-Splitter?
3) What inputs did you plug into on each sub? i.e. Left Sub Left line in, Right Sub Right Line in?
4) What degrees was all your dials set at when you ran aud?
5) Did you make any changes to your crossover on your speakers? Just curious what you have these set at.
I am running two 2150s and haven't dialed them in and would greatly appreciate any info you can provide.