VMPS subs do music excellently. Have received many great reviews both for speakers and subs as price is also excellent for what you get. For a grand you could have bass that rivals 3k subs. Check out the VMPS forum at audiocircle.com if you want to know more. You don't say what your budget is but AV123's new sub is reported to be great for the money(600). Stay away from subs with servo's. Don't have time now but do research on points against servo's on audio asylum and you'll see why. Besides, why not just design the sub with low distortion to begin with?
