I've heard both and think the REL are just better overall - faster, more dynamic, yet call less attention to themselves. FWIW, I would recommend getting at least two subs and place them carefully. The more points you pressurize the room with the better it will sound. Do a little digging into the Swarm subs to learn more. You can basically copy that setup with any subs but the concept remains the same.
Short list of musical subwoofers
I plan to invest a "musical" subwoofer to augment the music listening experience of my current two-channel sound system. After a few digging over the acting forum and on-line reviews, it seems the following budgetary sealed (primarily) subwoofers are often mentioned and raved:
- Rythmic L12 (18Hz; sealed, servo controlled; 300 watts RMS; $609);
- RSL Speedwoofer 10S (24Hz; front ported; 350 watts; $428);
- Rel T5x (8 in; 32Hz@-6db; 125 watts; $680)
- SVS SB 1000 (24Hz, sealed; 300 watts; $450) or 2000 (19Hz; sealed; 500 watts; $600);
All above claim to have quick, accurate bass that is good for music listening. Rel, although not being able to extend to 20Hz, has been highly rated for easy integration into the sound system. I am not even sure if being able to get down low and/or the wattage of the active amp are critical to the musical application. My living room is about 25 ft wide and 20 ft deep. I do have limited budget but if others are warranted for a higher price tag in your opinion I am willing to bump up the budget. You inputs are highly appreciated.