(Long - sorry but here goes) I drive mine w/ Channel Islands D-200s. I actually bought my VR4JRs from Dusty at CIAudio - I think he said that they were the same ones used to help voice the D200s.
Maybe a diversion here, but I must tell you (all)-
I was initially disappointed in the sound of this combo - (JRs came broken in, and amps were reviewer units returned to CIA, lead shot added) flabby overblown bass, no sense of immediacy, snare drums lacked any snap - Just dull and bloated. BUT NO MORE!
I have mine on a suspended wood floor. I placed a 6' 4x4 brace under the middle of the room, and OMIGOD did the sound improve (the look of disbelief on my wife's face was priceless). So if this made that much of a difference, I had to try more. So now I have 2 12' 4x4s w/ 4 support columns supporting the floor - Each floor joist (they run across room side to side) is anchored to a 4x4 in two places with pairs of angle irons, in case joist doesn't touch 4x4. Not done yet - ran bead of silicone between each joist and the flooring above it. Absolutely transformed the sound of the system. There is no amount of cables, equipment, EQ, anything that could have made this level of improvment. I cannot express the extent of this transformation, from the bass all the way up.
One last tweak - The floor spikes are 16.5" apart - This allows the spikes to sit directly on the joists, directly above two support columns.
I did not notice this problem, pre-bracing, w/ my B&W CDM7NTs - I think the JRs put so much energy into the floor that this becomes a major component of the ultimate sound.
Hope that this helps someone to extract the maximum from these speakers.
