Originally Posted by Tom Vodhanel
Good memory Ray!
The XV30 will have a 2.5dB to 3.5dB edge across the operating bandwidth(16-100hz) compared to the XV15. Adding a second XV15 will give you about 6dB more if you co-locate them in the room. If you separate them....say one in each front corner of a medium sized room....the second unit will add more like 3.5 to 4dB(instead of 6dB).
So dual XV15s co-located will have about 3dB more output. But if you separated them you would be very close in output capabilities to a single XV30. Dual subwoofers do give you the potential for a smoother bass response over a variety of seating positions though.
Ndskurfer----how large is your listening room and are there any large openings to other areas of the home?
Power Sound Audio
Hi Tom! We exchanged a few emails earlier this month regarding placement (I have a PC13 that I'm looking to either replace or supplement).
My room is roughly 2300cf (picture is in the link in my sig if you scroll down a little in the first post). This pic is very outdated now as I have replaced furniture & some components and moved the sub, but the room is the same
. There are 2 doorway openings that lead to 2 sets of stairs in the front right corner. The stairways limit my placement up front. I can fit my PC13 behind the front right speaker, which is where it measures best. I am looking to fill the back 2 corners with XV15's. From your suggestion, I'm also considering placing an XV15 on it's side up front where the PC13 currently, as the footprint is slightly too big to be placed upright and fit behind speaker, and a second (or third) along the back wall. I have REW, so I will be able to explore my options with measurements when it comes time.
Still in the info gathering stage, you have been a ton of help with your prior responses to my questions, thanks again Tom.