Try 2, 3 or maybe 4 SVS PB13Ultra 's for half the price of the JL's and half the distortion levels at same volume levels. I have one in piano gloss black and it is incredible. I have a Sistrum SP-101($400used) stand underneath it and the bass energy is awesome.. I think four would shake the neighbourhood nicely, cleanly and very tight with detailed authority. Check them out....
REGARDS Bacardi
REGARDS Bacardi