User reviews: car Subwoofers

passive, 12" (30 cm), 250 W, 28 – 1000 Hz, 4 ohm, 90 dB, bass-reflex

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

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

active, 8" (20 cm), 125 W, 35 – 120 Hz, 4 ohm, 70 dB, sealed box

passive, 12" (30 cm), 500 W, 2 ohm, 91 dB, bass-reflex

passive, 12" (30 cm), 1000 W, 2 ohm, 96 dB, bass-reflex, 2 speakers

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), 1050 W, 34 – 2200 Hz, 4 ohm, 88 dB, no enclosure

active, 10" (25 cm), 300 W, 35 – 150 Hz, 4 ohm, 85 dB, sealed box

passive, 10" (25 cm), 400 W, 25 – 500 Hz, 4 ohm, 85 dB, no enclosure

passive, 8" (20 cm), 200 W, 30 – 500 Hz, 4 ohm, 84 dB, no enclosure