Matt - I was skeptical that the LFR-1100 would be a step up from the M100's. I have never liked a bi-polar main speaker, dating back to the 1998-2002 era when I had several different Def Tech Bipolars including the BP-2000 and BP-3000 speakers.
The LFR-1100 is actually available as a complete system, with an option to add a 4 channel ADA-1000 into the same chassis as the DSP for an extra $750.
Basically, it's now a $5000 speaker pair (USD) that is DSP and self powered.
Doing a blind test with the LFR-1100 against other speakers will be doable, just more complicated.
To the amp question ... we could easily do a blind test between a pair of amps. I would likely use the Legacy Signature SE's ... they are not only a high resolution speaker, but they are also more difficult to drive, especially in the bass department, than other speakers.
This is really not a "bad thing" ... when one is dropping $7000-$9000 on a pair of speakers, it's appropriate to use a very high current amp, which the Legacy's need in order to thrive.
