I heard a pair of 10" JL Audio W1v2's today powered off a JL Audio 300/2 amp. Honestly I wasn't that impressed. My 2 10" Infinity Reference subwoofers sound better and are louder being powered off my 400 watt Profile amp. The JL's just sounded kind of weird. They had quick response but it jsut didn't sound right. They were in a sealed box made to JL specs.