POWERBASS ASA3-1500.1 D, 1/MONO-CHANNEL CAR AMPLIFIER. Selectable Subwoofer EQ: 0-18 dB Gain @ 45Hz. Subwoofer Frequency Range: 20 Hz - 150 Hz. Subwoofer EQ Frequency: 45 Hz. Variable Subwoofer EQ: 0 - 18 dB.
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