Phoenix Gold ZB212P Twin 12 Inch Ported Subwoofer Bass Box
Selectable Subwoofer EQ: 0-18 dB Gain @ 45Hz. Subwoofer Frequency Range: 10 Hz - 250 Hz. Subwoofer EQ Frequency: 45 Hz. Variable Subwoofer EQ: 0 - 18 dB. Powerbass XL-605DM - Mono PowerSport Class D Car Bass Amplifier 600W.