Dual Subwoofers?

The Rythmik F12 is great, and is also available with a paper cone instead of aluminum, model F12G (for GR Research.). For those wanting to move more air, there are also the F15 and F18, aluminum cone only.

For those with dipole loudspeakers, there is the amazing OB/Dipole Sub, a collaboration between Rythmik’s Brian Ding and Danny Richie of GR Research. Available as a kit only.

As others have posted their recommendations, I feel I should post mine.

Though a bit pricier to gain entry, the Vandersteen subs are quite unique in that the employ a high pass filter (adjustable to amp impedance). The result being that you have near seamless integration with your speakers.

The new Sub 3's have built in equalization, which allows you to 'tune' the subs to your room.

Using first order crossovers also benefits time and phase alignment.

Yes, there are less expensive ways to add subs (I also use HSU in my office), the Vandy subs make anything else look and sound silly.

Bob

What say you?

I say go for it if you can afford it.

In the living room we use a pair of KEF KC62s that integrate with LS50 Wireless II speakers controlled by an a KEF app that runs on an iPad.  Each speaker has an output to a sub.  In the media room we use a pair of Velodyne SMS-1s that take LR output from an Ayre KX-5 Twenty preamp and send room corrected output to one of a pair of HGS-15s.  I'm not sure about the stereo contribution of the subs, but pairs of subs are certainly effective.

db