Best Subwoofer To Use With A Two Way Speaker System


I received my new Wilson-Benesch Vertex stand mounted loudspeakers in mid-January.  After about a 200 hour break-in period and a few position tweaks I am now in audio nirvana but without the final low octave or so.  I carefully chose my associated electronics and couldn't be more pleased.  My Sutherland N1 preamplifier has 2 outputs so I can use it to drive a crossover/subwoofer system.  
I am entirely certain that my spouse would never stand for me to add a W-B Torus Infrasonic Generator & the accompanying Torus Amplifier at about $12,000. I would like some assistance from those that have the experience to advise me of something very good to mate with my system at a much more reasonable cost.  Thanks



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Best Subwoofer To Use With A Two Way Speaker System
If you want to get HT type bass go with the multitude of 12"-15" units.

If you want one s/h that will blend perfect and give you an octave or two lower like it’s an extension of your Wilson-Benesch, then I suggest you look for an oldie but very nice Yamaha YST-160 or 305. These have proper linear amps twin 8" with servo control, very tight and musical, no doof doof droning HT sound from these. And they are the perfect height to use as stands, if you get two.

Cheers George

The days of putting a sub in the corner, choosing a bass heavy recording and trying to make adjustments while standing behind the sub are long gone. Today your matching the sub to your room and the mains. 

There are a few powered subwoofer brands that offer servo driver control and different forms of auto and/or manual digital signal processing built in. They can make integration unnoticeably seamless and lessen the need for room treatment. Some offer multiple EQ presets, visual setup monitoring from 200Hz on down, and remote control. You could even slave a lesser non DSP sub using the line level EQd signal and greatly lessen your rooms nodes while using smaller subs.

Do your homework by looking up the latest DSP setup instructions on the manufacturers sites that might suit your needs. They vary greatly as do the recordings ELF content, hence the remote control. 

I hope your spouse likes to boogie. Enjoy. 

https://www.audiogon.com/listings/subwoofers-velodyne-digital-drive-plus-10-inch-black-brand-new-sea...
I can't recommend more highly the B&W DB 1 sub that I've used for several years in a very high end system currently with Wilson speakers. You will never know it's in action except that your bass response will be awesome seemingly from only your main speakers. It also has great features such as room correction. They have recently updated these subs with remote control among other things. At $4500 list I can't imagine spending more and used ones when available(rare) fly out the door. Last thought. Get two if you want perfection plus they look good and are relatively compact.
You may find the best subwoofer is no subwoofer. Make sure you try before you buy. You dont want to muck up the speakers sound quality that you now enjoy... with an inferior sub.  
Thank you to all of the above.  A home audition is a must as "aolmrd1241" expressed.  I am thinking that it boils down to three of the brands that seem to do most things correctly, in no particular order: The B&W DB1, Velodyne & JL Audio.
Any other critical requirements?