Sealed subs a big no for this room..
I emphatically second this opinion!
A ported sub of the same driver size would pressurise the room much better than a sealed box for very little additional money.
An FVX15 would double the output of the sealed F15 and the price difference is just about negligible.
Oh great. Guess your using it in a big space.
Thats right. A single Rythmik E15HP2 is adequate but to get an epic movie feel, especially at low volumes, I've had to couple it with dual REL T9is.
The reason why i recommended the slightly larger F15 is because notwithstanding the same driver and amp, cabinet volume also matters when it comes to output.
The E15HP2 is quite a small box despite being a 15 incher. The F15 isn't much larger but that added volume should help.
I have a Mission MS450 which is a larger box and ported to boot and it has only 400Ws of power. However, it pressurises my large room more effectively than the E15HP2 at low volumes.
This post from Rythmik's website gives good guidance in this regard:
Home theatre subs
For systems where home theatre is the main priority, we recommend our vented subs. At 20 Hz, a vented sub is comparable to the output of two similar sealed subs. LV12F is our lowest cost sub and is designed for smaller rooms and modest budgets. Our larger 15" subs are suited to larger rooms and have substantially more output. Don't be fooled by typical comments about vented subs lacking accuracy. These subs are tight and musical.
Music only systems
For music-only systems we recommend our sealed subs. We have sealed subs in various sizes and finishes. Where high output at 20 Hz is not needed, our sealed subs will match the output of their vented equivalents. In addition, greater extension is possible. Combined with room gain, in-room extension to 14 Hz or even lower is possible.
Combined systems
For combined music and home theatre systems, many of our 15" sealed subs are a good all round compromise. Our dual sealed 15" F25 is a very good choice, offering the LFE output of our vented subs but with the added bonus of greater midbass efficiency and output.
With respect to the above, my sealed speakers and sealed subwoofers leverage room gain and give additional extension over the rated figures - 10Hz flat and -3db at 8hz for the Rythmik (its rated at 14hz at -2db) and 25hz at -6db for the REL (rated at 28hz at -6db). Furthermore, they roll off in a very linear fashion as opposed to my ported speakers and subwoofers which roll off drastically.
My room is just 10*11 and the the 600 watts should be more then enough.
I agree.
Also I don’t crank the volume high and watch at very low volume levels. I think apart from power and head room both 600 and 900 version should perform the same interms of quality of the bass.
True. But do check if the 600W version comes with a PEQ. I believe you have to opt for it specifically and at an added cost. However, it comes standard on the 900W version. Redundant if you use MiniDSP or any other room correction.
How good is it for movies and music?
Incredible for both. My RELS are ever so slightly better at disappearing and blending but the Rythmik does a darn good job as well while delivering incredible extension down to 10Hz flat and -3db at 8hz.
