I have ML ESL-X for 2channel and wanted something "quick" to blend with electrostats. SVS was an excellent option. as others mentioned, DSP app lets you dial it in.
My experience with SVS: beyond good!
- ordered an SP2000-pro AND a micro (dual 8") and demo'd in my system, knowing that I could only afford to keep one. I did receive a discount for buying a pair. Also note- the "blems" page has nice discounts. most blems you won't ever notice. they provide pictures.
- the SB was musical, but really powerful (12") I wanted badly to keep it but this is not home theater.
- the micro, with a pair of 8" matched best with the dual 8's in the mains. With 3 bands of DSP- able to configure +-dB, slope and Q I was able to prevent peaks and smooth out the response curve. This cannot be achieve without DSP
- I was able to return postage paid the SB2000-pro for full refund. They did NOT withhold the difference I saved from the "pair" discount! AND, a couple of weeks later, I received an additional credit for a price drop!
Take a close look at SVS. a pair of micros likely have sufficient output for your room and will be more musical. but if you desire lots of bass, a pair of SB will drive you out of the room.