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

Showing 1 response by larry5729

I have two REL SHO subwoofers.  I located them in the left and right corners behind the front speakers.  I decided to go with REL’s because of the high level connection.  The hook up to the left and right speaker channels and play the woofers to extend the bass smoothly.  I am playing them at 40% volume.  I  do not like the sound of boomy bass.  They sound natural and just fill in the bass.