Subwoofer Advice for my Media Room...

I have a room which is 12.5 ft x 15.5 ft. However, the room has a permanent opening toward the back (which leads to stairs to the first floor).

This opening seems to be causing havoc on subwoofer placement. I have found the best placement for an M&K MX-200 to be towards the back corner. If I place the sub near the front mains, the main listening area (which happens to be near the opening towards the back of the room) is completely void of bass. However, there is a huge disconnect between the front mains (mythos one / mythos three), and the bass in the back corner.

I was hoping a second sub near the front mains would help cure the disconnect. If not, please advise.

I was thinking a smaller sub would do the trick, as I am missing the "thump" from the front mains and the M&K is providing the very serious low end.

Does anyone have an opinion between the AudioSource PSW110 vs. Definitive Technology ProSub 80 vs. Dayton SUB-80? I would really appreciate the help.

drhack...

thanks for the reply...but i have exhausted all possibilities with a one subwoofer setup in regards to room placement and crossover settings (both with through the reciever as well as on the sub)...its painful to know the system could sound so much better (as I have set the front speakers against the other wall - which sounds amazing but not good for sitting arrangement)...any advice would be great...

have you or anyone else heard the audiosource or dayton subs???

drhack...the mains are def tech mythos one's...the center is def tech mythos three...the surrounds are yet to be determined...i have not used an SPL meter to measure freq response...but the void in bass below ~80 Hz is even evident to my wife...who is by no means an audiophile...

over the weekend i was able to place my second 10" EMP sub downstairs in the media room...i placed the sub near the front mains...and even still there was a disconnect between the front mains and the M&K sub in the back corner...

if I were to essentially close up the opening leading to the first floor...would that resolve the issue as the current configuration of the basement almost implies two rooms...the area without the opening and the area with the opening...


dalto...if you hear anything about that audiosource sub...please let me know as well...thanks...


homeav...could you please explain the following with a little more detail as i was also concerned about the same spec and am still a little confused...thank you...
125W@<1% THD
(Continuous operation at 1/8 rated power)

localnet...im using a sony str-dg800...while it is among the low-end recievers...i dont believe the reciever is at fault (as the reciever works wonderful in a different room configuration)...

and while the M&K mx-200 does shake my insides (literally - super loud - super low) it only seems to do this from one location in the room (the back corner)...if I place the same sub near the front left or front right (facing away from or at the listening area)...the listening area is once again completely void of bass...

but thats pretty interesting that with three openings in your room...you still have fairly uniform bass response...do you have a variable phase setting on the velo...or does the reciever account for in room response...

homeav...thanks for the input...that does seem to make sense though...<1% THD at 1/8th power...