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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Low Level Input Range 0
Ideal for professional installation: Best suited for a seamless rebuild when installed by a professional technician
rear and sub outputs to aftermarket amplifiers with flexible matrix routing and advanced bass control
Material: 0
high-efficiency 1-ohm Class D mono amp built for daily‑driven systems and high‑output bass
B2 Audio Ref Four Bass Knob Controller with Level Voltage Temp & Clip Indicators 1500 Watts RMS Low Level Input Range 0The B2 Audio Ref Four Bass Knob Controller is the official external bass control built specifically for seamless integration with the Ref Four amplifier, delivering precise on the fly bass adjustment and real time monitoring for serious car audio installs. Level control knob: Level control knob for precise bass adjustment, allowing you to dial in bass presence without altering processor settings. Power Voltage selector switch: Power Voltage selector
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