This time the Lipinski’s were connected to a CJ 60 watt tube amp. The main thing I wanted to be sure of was that the Lipinski’s could feed my fix for power listing. I threw on some reggae and r&b and turned up the volume. Boy did those Lipinski’s sound bad at high volumes.
My guess: It was the CJ that sounded bad at high volumes, not the Lipinski's

.
The NAD probably does a fairly standard job for a SS power amp at high volumes. The CJ probably does a substandard job
compared to SS power amps at high volumes.
This Lipinski's are intriguing.
However, -3db at 31hz with 2 7"
sealed drivers!?!?
This number sounds unreal or inflated (unless quoting some "in room" measurement).
Few (any?) 12" high end subwoofers hit -3db at 31hz in a sealed enclosure, even critically damped (anechoic).
Anyway, I'm sure they're wonderful speakers, I just can't stand when speaker manufacturers quote in-room bandwidth numbers without telling the reader that fact.
edit: I was right. Those are "in-room" numbers. Anechoic they roll off at 12db octave starting at 70hz.
See
http://stereophile.com/standloudspeakers/1205lipinski/index3.html