Rockville USS8 8″ 600W Slim Under-Seat Active Car/Truck Subwoofer, 150W RMS, Built-in Amp, 3 Ohm, CEA-2006 Compliant, Bass Knob, for Tight Spaces

The Rockville USS8 is a space-saving under-seat subwoofer system engineered to deliver impressive low-end performance without the bulk. With a slim 2.9″ profile, it installs easily under most car or truck seats-ideal for tight spaces. It combines an 8″ subwoofer with a built-in 150W RMS amplifier, eliminating the need for external amps and simplifying installation.
This CEA-2006 compliant system offers real power ratings-600W peak and 150W RMS-backed by third-party verification. Fine-tune your bass with advanced controls, including a low pass filter (50Hz-150Hz), subsonic filter (20Hz-50Hz), bass boost up to 12dB at 45Hz, phase switch (0 degree /180 degree ), and input sensitivity adjustments. A remote bass knob and all mounting hardware are included for convenience.
With high- and low-level inputs, smart turn-on circuitry, and heavy-duty mounting feet, the USS8 is built for both performance and durability. Its 3-ohm impedance and frequency response range of 15Hz-125Hz make it a great addition to any car audio system looking to add clean, deep bass with minimal footprint.
SLIM & COMPACT: At just 2.9″ tall, this sub fits easily under most car and truck seats-ideal for space-limited installations without sacrificing bass.
BUILT-IN AMP: Features a powerful 150W RMS Class A/B amplifier with PWM MOSFET power supply and auto turn-on via high-level inputs.
CUSTOM SOUND CONTROL: Fine-tune your audio with subsonic filter (20-50Hz), low pass filter (50-150Hz), bass boost (0-12dB @ 45Hz), phase control, and adjustable input sensitivity.
CEA-2006 COMPLIANT: True 150W RMS power rating verified by third-party testing for reliable performance and accurate output.
FULL INSTALL KIT INCLUDED: Comes with subwoofer level control knob, mounting hardware, RCA and high-level inputs, plus thermal and short protection circuits for safe operation.