I've got 2 pioneer ts-w3002d4 subwoofers with dual 4 ohm voice coils in a custom built vented enclosure powered by a hifonics Brutus BRZ 2400.1d and a kenwood KDC-BT652U head unit. The subs are rated for 3500 Max and 1000 rms but they've never been pushed past 23 on the deck because the door speakers distort after about 20 (they're stock) only reason for selling is I have my own car now not one that was given to me by my parents and they won't fit in a 350z. Any input would be helpful. Thanks