Originally Posted by basshead81
Im assuming phase issues around the ported subs tuning point.
Thank-you. Is what you're trying to communicate, regarding when one subwoofer drops out and the other continues due to the tuning point of the vented subwoofer? If I'm understanding you correctly, the more drivers in a system, the smoother the graph. As you know, synergistically the sound waves combine. I expect the amplifier and technology of the Rythmik amplifier to automatically integrate into the tuning point of the XV30f. In my opinion, the E15 (600w amplifier controlling one driver) is quite a sealed subwoofer and in my opinion, is capable of keeping up with the XV30f's output.
If speaking about phase issues, I've put a lot of measuring effort in, using asymmetrical phase settings so as to account for the different times the sound wave arrive at the main listening position. Of course this bones the person four feet to the right, but if you won't tell them, I won't either.
Yes, even if the subwoofers are reasonably matched, phase issues can be quite the challenge.
(from your above comments, it's looks like a bit of both issues)
I'll use the LPF on one sub to reduce interaction and cancellation issues. Currently I have our subwoofer system set up in this fashion to reduce the size of a null that anti-mode was having a bear of a time dealing with.
With REW to aid in seeing the room's acoustics and how the room responds to the combination's reproduction efforts......time will tell.
Then there's the add of anti-mode that handles phase alignment issues and couple with Audyssey, more issues are dealt with. I'm sure there are quite a few people who think I'm totally daft in how I see things.
At this time and point, I'm not setting anything in mental concrete but instead, it's just an idea I'm knocking around. It's nice to read what you guys think. Yes, it's an expensive idea to knock around but at this time and point, it's just an idea and yes, maybe it's a lame idea but I want both worlds. The world of PSA and their XV30f and due to size constraints, I want the wonderful world of Rythmik and their sealed, E15 offering. In the end, I may have to sit down, shut up and go with the Rythmik, F25 and the E15 and sadly feel as if I've abandoned PSA and SVS. I think we all get attached to these manufacture's product lines.