User reviews: car Subwoofers

active, 11" (27 cm), 200 W, 30 – 150 Hz, 4 ohm, 84 dB, sealed box

passive, 6.5" (16.5 cm), 70 W, 60 – 5000 Hz, 4 ohm, 94 dB, no enclosure

active, 8" (20 cm), 120 W, 25 – 152 Hz, 4 ohm, sealed box

active, 10" (25 cm), 400 W, 4 ohm, 84 dB, sealed box, subsonic

passive, 10" (25 cm), 750 W, 26 – 200 Hz, 2 ohm, 82 dB, no enclosure

passive, 12" (30 cm), 500 W, 25 – 400 Hz, 2 ohm, 88 dB, no enclosure

passive, 10" (25 cm), 500 W, 25 – 400 Hz, 2 ohm, 88 dB, no enclosure

active, 8" (20 cm), 50 W, 20 – 200 Hz, 4 ohm, 98 dB, sealed box

passive, 12" (30 cm), 250 W, 22 – 200 Hz, 4 ohm, 88 dB, no enclosure

passive, 10" (25 cm), 250 W, 24 – 200 Hz, 4 ohm, 87 dB, no enclosure

passive, 10" (25 cm), 600 W, 29 – 200 Hz, 2 ohm, 78 dB, sealed box

passive, 10" (25 cm), 500 W, 2 ohm, 84 dB, sealed box