Rockford Fosgate T1500-1bdCP 1,500W Mono Amplifier

The Rockford Fosgate Power T1500-1bdCP is a mono car amplifier engineered to drive a subwoofer system with substantial, controlled bass output. It is designed for vehicles where a dedicated amplifier is needed to add low-frequency authority beyond what a receiver or full-range amplifier can provide. Its mono layout keeps the installation focused on a single subwoofer or a properly wired subwoofer array.

This amplifier delivers 1,000 watts RMS at 4 ohms and 1,500 watts RMS at either 2 or 1 ohm. Its Constant Power configuration is intended to maintain high output across its supported impedance loads, giving installers flexibility when planning a subwoofer system. The Class BD topology is tuned for subwoofer duty, with a specified frequency response of 20 Hz to 250 Hz.

System tuning is handled by an onboard low-pass crossover adjustable from 35 Hz to 250 Hz, along with a selectable 28 Hz infrasonic filter. A Punch EQ control provides up to 18 dB of boost at 45 Hz for users who want to tailor bass emphasis. These controls allow the amplifier to be integrated with full-range speakers while keeping bass output directed to the subwoofer system.

The T1500-1bdCP uses balanced RCA inputs and RCA pass-through outputs for straightforward signal routing in multi-amplifier systems. Its pass-through connection can feed an additional amplifier without requiring another RCA run from the source unit. An optional Remote Punch EQ controller can be added for accessible bass adjustment and overrides the amplifier's onboard Punch EQ control when connected.

Built for serious subwoofer upgrades, this amplifier uses a cast-aluminum heatsink, MOSFET power supply, and MOSFET output stage. Protection circuitry addresses short circuits, excessively low speaker impedance, and overheating. It is a practical choice for a properly planned high-power bass system with adequate charging capacity, correct wire sizing, and safe external fusing.

Key Features

• Constant Power Design: Delivers 1,500 watts RMS at 2 or 1 ohm.
• Mono Subwoofer Amplifier: Focuses its single channel on low-frequency system duty.
• Class BD Topology: Provides efficient power delivery for dedicated bass applications.
• 24 dB/Octave Low-Pass Crossover: Helps blend the subwoofer with full-range speakers.
• Punch EQ Control: Adds adjustable bass emphasis at 45 Hz.
• RCA Pass-Through Outputs: Supports convenient signal routing to another amplifier.

Design & Installation

The T1500-1bdCP is built around a cast-aluminum heatsink that dissipates heat from its high-power circuitry. It uses nickel-plated power, ground, speaker, and RCA connections to help resist corrosion. Power, thermal, and protect indicators provide at-a-glance operating status.

Plan for 4 AWG power and ground wiring, a 200-amp external fuse, RCA signal cables, and a compatible subwoofer load. Rockford Fosgate specifies mounting outside the engine compartment and recommends allowing at least 1 inch of air space around the heatsink when installed under a seat. Because this amplifier can draw significant current, verify the vehicle battery and charging system before installation.