I have a pair of these phenomenal drivers in a slot-ported enclosure being powered by a Rockford Fosgate T500-1bd amp in my 07 Scion tc. These bad boys can wake up the dead! I love the 10w3v3! The bass is so deep, clean, and clear. The gain on the amp is only 50% of its max, and the sub control on the double-din head unit is only on 4. It's enough to pump your heart right out of your chest, and not to mention, go hearing impaired. If you want some hard-hitting, deep, clear, and clean bass, JL is the way to go. Thanks JL Audio!