Comparison of various subwoofers for 2 channel audio


I have a 2 channel audio system, and I appreciate how subwoofers have augmented the sound quality of my system (with electrostatic speakers).  I currently am using a pair of Martin Logan Balanced Force 212 subwoofers, but I’m thinking about adding more subwoofers for a total of four in order to help balance the low frequency sound waves.  I’m considering adding a pair of Rythmik, SVS, or perhaps Velodyne subwoofers to the system.  Does anyone have experience with many of those brands, and how well they integrate with electrostatic speakers in a 2 channel system, or perhaps should I just get a second pair custom built with certain specifications?  
Thanks.

drbond

Another vote for REL and also to swarm subs. 

REL subs are truly tuned differently...they seem to add a lot of space and air to the signal and aren't just about thump.  They are also very fast. 

 

Swarming has helped eliminate bass nodes. 

@rhg3

yes, it looks like the swarm arrangement for subwoofers was a popular topic about 5 years ago: seems like many agreed that 4 subwoofers was ideal, and that using 4 subwoofers even precluded the need for DSP.

@mijostyn

No crossovers in use: just the LPF on the subs set at 55 Hz, and the low frequency knob on the Sound Lab electrostatic speakers turned to its lowest setting of -6, which I assume works as some sort of low level HPF. I don’t have any DSP, as I did not want to affect the SQ, since the tone of my system is reproducing acoustic music is so sublime. Even when I tried the REQ for the subs, while the bass sounded slightly sharper, it also sounded more artificial, and caused listening fatigue, which I had not previously experienced.

Your bi-amping of the speakers sounds like a real project!

@phusis So do you consider the bone-shaking thump of a dance club or the bass in the car next to you at a stop light that shakes your car "natural"?

@carlsbad2 — 

Of course not - why would you believe that from what I just wrote above?

I have a talon roc sub which has two 12" woofers it came with a bash 500 watt amp I had thought it sounded good and about a year ago the amp went. I found a triad platinum 1000 watt amp for sale and bought that and couldn't believe the difference it made it was like wow my sub never sounded like that before so a quality amp makes a big difference