Have you used any of the new Jamo Sub650? I only heard it at a rep firm's open house but in that big, open space, it still sounded decent.
Sub 650? No, not yet. I was waiting on the new THX Ultra2 D 600 SUB which is the 15" replacement for the D6 & D7 models from the old Jamo THX systems. I had planned on using two of them in a larger system open basment we were doing but the ship date had been pushed back twice. I'm sure we'll try it out eventually. The products from Jamo have always been excellent in terms of value so I'm excited to see what the new big sub can do.
I might bring the D 600 SUB in to put head to head against the new PhaseTechnology WL-12:
http://www.phasetech.com/products.html?product_id=WL-12 . They are priced almost identically. I've had the WL-12 on sample for a while now and it is no joke. Absolutely impressive in all respects. And it's wireless! I've tested the range and it's every bit of 50' & that's with obstructions.
I have used the D6 15" THX Ultra sub twice before and it was a beast. We'll see how the new one is.... eventually. Here is a spec sheet on it...
Type D 600 SUB
System Active DSP based subwoofer,
sealed enclosure, motional feedback
User interface Touch panel with backlight
Woofer 15” / 380 mm
Rated power 600Wrms @4Ω@THD+N <1%
Dynamic power 800Wrms@4Ω
Peak power 1600Wpk@4Ω
Maximum SPL TBD
Frequency range 20 – 200 Hz
Variable cut off 40 – 200 Hz
Variable phase 0 to -180
Level control Range 27 dB
Boundary gain compensation Variable
Line input Yes, stereo pass through for daisy chain
LFE input Yes, pass through for daisy chain
Speaker level input Yes
Sensitivity 100mVrms (line in only)
Sound modes Default, Personal, THX
12V trigger Yes, pass through for daisy chain.
Mains switch On / Off
Voltage switch (fuse) 115V/60Hz (6.3A) / 230V/50Hz (3.15A)
Auto enable switch Off / Auto / On
Stand-by power < 1W
Dimension 557 x 587 x 501 mm
Weight 32 kg