Rockford Fosgate TM750X1bd 750-Watt Class-BD Mono Marine Amplifier

Overview

This is where real bass starts.

The TM750X1bd is a compact, high-output mono amplifier built to deliver serious low-end power in marine and powersports systems. If you’re running a sub and want it to actually hit, this is the move.

What It Is

A dedicated subwoofer amplifier.

• 750 watts of mono power
• Class-BD design (efficient + strong output)
• Element Ready™ for marine environments

Performance

Strong, consistent power where it matters.

• 500W RMS @ 4Ω
• 750W RMS @ 2Ω
• 750W RMS @ 1Ω

Plenty of power for most single or dual sub setups without stressing the electrical system.

What Makes It Different

This isn’t just another mono amp.

• Constant Power → Maintains output as impedance changes
• Class-BD tech → Combines efficiency with better sound quality
• C.L.E.A.N. setup → Clip detection for proper tuning

Translation: more usable power, less guesswork.

Tuning & Control

Gives you control over your low end.

• Variable low-pass crossover (50–250 Hz)
• Punch EQ (0–18dB bass boost)
• Optional remote bass knob

Smart Integration

Easy to drop into almost anything.

• High-level & low-level inputs
• Auto turn-on capability
• Differential inputs to reduce noise

Built for the Elements

Made for real-world conditions.

• Element Ready™ design (water, UV, corrosion resistant)
• Marine-grade coating on internals
• Dual heat sink design for cooling

What It’s Best For

• Marine subwoofer systems
• UTV / powersports builds
• Compact high-output bass setups

What’s Included

• TM750X1bd Amplifier
• Mounting Hardware

Specifications

Power Output:

• 750 Watts RMS

Channels:

• Mono (1-channel)

Power Ratings:

• 500W x 1 @ 4Ω
• 750W x 1 @ 2Ω
• 750W x 1 @ 1Ω

Frequency Response:

• ~20 Hz – 230 Hz

Technology:

• Class-BD

Note

• Designed specifically for subwoofer applications
• Proper wiring and tuning recommended