Power Acoustik CB1-4500D Caliber Series 4500W Monoblock Class D Amplifier
For car audio systems that demand raw output and rugged stability, the Power Acoustik CB1-4500D delivers authoritative bass control and relentless power in a Class D monoblock design. Built under the renowned Caliber Series, this 4500-watt amplifier combines precision tuning with real-world durability, making it a dominant force in the one-ohm stable amplifier category.
The CB1-4500D is engineered for serious subwoofer enthusiasts—those pushing dual voice coil drivers or high-performance SPL setups. Its efficient Class D topology minimizes heat while maximizing output, delivering 2200W RMS at 1 Ohm, with headroom that peaks at 4500W MAX. This means bone-shaking bass without voltage drops or thermal cutouts.
Crafted with a military-grade SMT PCB and equipped with a MOSFET pulse-width modulated power supply, this monoblock is built to withstand punishing sessions without distortion. A variable low-pass filter (35Hz-250Hz) and subsonic filter (10-50Hz) allow tight frequency control, while the 0-12dB bass boost at 45Hz adds customizable depth.
Thanks to its high-level input with signal-sensing auto turn-on, integration with stock head units is effortless—no remote wire needed. The CB1-4500D is a compact device, designed to fit under seats or in tight enclosures, featuring a rugged chassis finish, top-mounted controls, and a phase shift switch for acoustic alignment.
Key Specs:
- RMS Power Output: 2200W x 1 @ 1 Ohm
- Max Power Output: 4500W
- Class D Monoblock Design
- 1 Ohm Stable Operation
- High-Level Input with Auto Turn-On
- Low-Level RCA Inputs (200mV–6V)
- 12dB Bass Boost @ 45Hz
- Thermal, Short, and Overload Protection
- Included Remote Bass Control
Ideal for deep bass lovers, competition builds, or anyone upgrading to a high-output mono amp—the CB1-4500D is the caliber of power you install when compromise isn’t an option.
