I'd really like to have the Paradigmn Servo-15 V.1 tested.
I've had this sub for years and still can't believe how good it appears to be given it's size.
It only has a 400 watt amp, but provides house shaking low end that compresses in a very civilized manner when overdriven in my opinion.
I always thougt I'd like to see an Ilkka test done on it to confirm my suspicions that for the money (~$1500USD) it's a big bang. My reading is that the
newer V.2 at ~$2200USD wasn't much of an improvement in performance.
I suppose getting hold of these commercial subs is tough though.... But you asked..
brucek