Ok for the price point.
Crutchfield Customer Review (What's this?)
Ok for the price point. This may be engineered and designed by JL but it's made in China by a contractor. The sound and build quality are substandard compared to the old, US built 10WØ4 model I replaced it with. Not because it's made in China, because of quality control. 10WØ4 was not an upper end sub but it performed very well. It does seem louder for given power but is a bit muddy also. It may be my setup but I had it dialed in for tight, hard hitting lows. I installed new sub in same box with same settings and it's ok, but not great as before. Enclosure is a sealed box of the prescribed volume. I will try to get it dialed in better and if I get better results I will revise my review. I got a blemished model for a lesser price. Only flaw was on the outer bezel and wasn't readily apparent. It's behind the seat so I didn't mind. I purchased the grill also. Fits well and looks good. 2006 Chevy Silverado 2500 HD single cab. Kenwood KDC-BT565U, bridged 250x2 amp set at 2/3 max power, low pass set at 100hz. I purchased this based on the performance of my old one. Age and cold temps and many, many hours of use finally caused separation of the cone from the foam surround.
Pros: Louder for a given power level than the JL 10WØ4 it replaced.
Cons: Not the same level sound or build quality as the older, US made model it replaced.