Wow that Paradigm SUB25 looks absolutely awesome.
3" peak to peak, 3000 Watts RMS (7500 Watts peak)
Shame it's not the same price as the Servo 15v2. That's a lot to ask with what you can get from Epik, eD and SVS for $1,000 or more less.
How much less distortion do the Paradigm subs need. I'll be interested to see some tests on this. I know that when I listen to a 12Hz test tone the Servo 15v2 makes a small "clacking" noise, as though it's hitting the limits of its excursion, which is 2"; what would an extra inch do?