Excellent price / quality ratio, best buy

Very good subwoofer at a very competitive price, high performance and is still aesthetics.
Personally I use it with my Amp Pioneer VSX-924-K 7x 150W accompanied by a pregnant Pack ELTAX Copenhagen; is a killer, rendering serious is deep and powerful. thanks to the QD-Bass technology (speakers facing downwards and spreading in four directions) and Advanced YST process, which delivers a sound pressure and overall performance that are higher, more the bass level is adjustable directly on the box (besides the amp setting).
my only regret is that food is not subservient to the amp (it remains on standby, but consumes very little and does not heat at all); but at this price you can not still require the same performance as some boxes sold 4-5 times more.
my conclusion, good housing, cheap, go for it you will not regret it!