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Version: 2.0.0Built Date: 02/09/2026

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Powerbass - PB-120.4 - 120 Watt x 4 @ 2 Ohm Amplifier - Black/Gray
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SKU: cf32558fa29c3e5c034a060279b1d3f8
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About this product

Borrowing from Powerbass's former ACS series, these new amplifiers offer upgraded features, terminals and a dual layer PCB all packed in the most compact chassis allowable. To accomplish this they selected SMD parts and engineered a brand new high density heat sink engineered for maximum efficiency and cooling. The result, an all new line-up of two, four, five and mono channel models that offer amazing performance and fantastic value. Ultra efficient, the PB Series amplifiers produce plenty of low distortion high fidelity audio in a footprint small enough to fit nicely in nearly any vehicle. The PB Series Amplifiers provide the perfect mix of performance and style in a sleek new compact chassis. Features: 4-Channel 480 Watt High Efficiency Class A/B Design 2-ohm Stable (4-ohm in Bridged Mode) PWM MOSFET Power Supply High Level (Speaker)/Low Level (RCA) Input Remote Soft Delay Turn On/Off Circuit Variable High/Low Pass Electronic Crossover Selectable 12dB Bass Boost EQ Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output. Specifications: Peak Power: 960 watts Power Supply: Unregulated PWM Inputs: RCA, 2 Pairs Input, 2 Pair Speaker Level Input Dimensions (in Inches): 14.8" x 7.1" x 2.0" Depth: 14.8" Channels (mono): 4 4-ohm Power: 60 watts x 4 4-ohm Mono Power: 240 watts x 2 2-ohm Power: 120 watts x 4 Selectable Subwoofer EQ: N/A Variable Subsonic Freq: N/A Equalization Boost/Cut: N/A Height: 2.0" Width: 7.1" Switchable Subwoofer EQ: N/A Subwoofer EQ Frequency: N/A Variable Subwoofer EQ: N/A Low-Pass Crossover Freq: Variable 30 Hz - 250 Hz High-Pass Crossover Freq: Variable 50 Hz - 1 kHz Crossover Slope: 12 dB Input Sensitivity: 0.25 V - 6.0 V S/N Ratio: >100 dB Total Harmonic Distortion: 0.3% @ Rated Power Strapped Output Power @ 2ohms: N/A Output Power (14.4 V) @ 4 ohm: 60 watts x 4 Output Power (14.4 V) @ 2 ohm: 120 watts x 4 Output Power (14.4 V) @ 1 ohm: N/A Frequency Response: 10 Hz - 50 kHz
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Powerbass PB-120.4 Amplifier

Elevate your audio experience with the Powerbass PB-120.4 Amplifier. Delivering an impressive 120 watts per channel at 2 ohms, this amplifier ensures powerful sound performance for your car audio system. Its sleek black and gray design not only looks great but also fits seamlessly into any setup.

With advanced circuitry and high-quality components, the PB-120.4 provides crystal-clear sound and robust bass response. Whether you're a casual listener or an audiophile, this amplifier is designed to enhance your music enjoyment on the road. Get ready to feel every beat!