Thiel Owners

I cannot comment on any other brand,  but i  have had great success using REL subs with my 2.7's and now 3.7's.  I just added a second sub,  and the improvement was not subtle and it is not just about more or deeper bass. 

I have a Thiel SS2.2 sub for the 2.7s, using a PX05 passive crossover, specifically tweaked for the 2.7s. 

It really helps, although I'm only into classical music, and not the AV, heavy metal stuff, etc. 

Rules - you may be interested to know that Jim's 2nd choice was 2nd order. The 01 had been 3rd order, the 02 was second order, but not inverted polarity like Wilson, but rather both drivers in positive polarity with the X points fudged to lower the amplitude hump. It's pretty convincing; there are others here who agree. The phase transition is not abrupt and I believe you could massage a second order slope via DSP for a pleasing result with less strain on drivers and an easier time to find off-the-shelf units that would work.

Ronkent

I thought I bought the Sound Anchor stands. My Paypal shows that I did. Did you receive my payment?