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Rockford Fosgate Power T1500-1bdCPPower 1,500 Watt Class-bd Constant Power Amplifier

4.861 reviewsSee all reviews

A robust, well-built mono amp that consistently delivers more power and chest‑pounding bass than its rating — best paired with heavy-duty electricals and a separate bass remote.

Buyer confidence

87%

Highlights

  • 2-Year Warranty
  • 24dB/octave crossover
  • MOSFET power supply
  • Infrasonic filter

Key specs

Full specs
Number of Channels
1
Total Power (Sum of Rated Power)
1500 Watts RMS
Rated Power (RMS Continuous Power)
1000 Watts x 1 @ 4-Ohm 1500 Watts x 1 @ 2-Ohm 1500 Watts x 1 @ 1-Ohm
Dynamic Power (PVC/PowerCube®)
1045 Watts x 1 @ 4-Ohms 1549 Watts x 1 @ 2-Ohms 1715 Watts x 1 @ 1-Ohm
Bridgeable
No
Frequency Response
20Hz to 250Hz +/- 0.5dB
Input Sensitivity
150 mV to 4 V
Circuit Topology Class
Class BD

Key specs

Full specs
Number of Channels
1
Total Power (Sum of Rated Power)
1500 Watts RMS
Rated Power (RMS Continuous Power)
1000 Watts x 1 @ 4-Ohm 1500 Watts x 1 @ 2-Ohm 1500 Watts x 1 @ 1-Ohm
Dynamic Power (PVC/PowerCube®)
1045 Watts x 1 @ 4-Ohms 1549 Watts x 1 @ 2-Ohms 1715 Watts x 1 @ 1-Ohm

Highlights

Overview
  • 2-Year Warranty
  • 24dB/octave crossover
  • MOSFET power supply

Review highlights

Based on customer reviews

Massive, dyno-backed power and punch for sub systems

A robust, well-built mono amp that consistently delivers more power and chest‑pounding bass than its rating — best paired with heavy-duty electricals and a separate bass remote.

61 reviews4.8/5 averageUpdated Mar 15, 2026

What buyers praise

  • Real-world output often exceeds the 1,500W rating (birth sheet/dyno numbers reported)
  • Very strong, punchy bass and high headroom for subs

What to watch for

  • No bass-level control included — many buyers add a separate remote/knob
Overview

The Power T1500-1bdCP is a 1,500 Watt mono Class-BD amplifier designed for subwoofer use in cars and trucks. Its proprietary Constant Power configuration delivers up to 25% more power across impedance loads, and its frequency response is optimized for subwoofer applications.

Best for

  • Dedicated automotive subwoofer systems and high-output mobile audio where consistent power across varying loads is requ…

Key points

  • 1,500 Watt mono output (Class-BD)
  • Constant Power design delivers up to 25% more power across all impedance loads
  • Frequency response optimized for car and truck subwoofers
  • Balanced differential inputs for improved noise rejection
  • Features and technologies: MEHSA3, TO-247 MOSFETs, Punch Bass EQ, DSM, CTA-2006 compliant, Engineered in the USA

Fit and use

Use as a dedicated mono amplifier for subwoofers in automotive audio systems. Match the amplifier to a compatible subwoofer impedance and ensure the vehicle electrical system and wiring meet the amplifier's power demands.

What to know

Power ratings and "Constant Power" behavior are design characteristics intended to provide more consistent wattage across impedance loads. The unit is optimized specifically for subwoofer frequencies in cars and trucks and includes balanced inputs and compliance with CTA-2006. Review the manufacturer's product documen…

Highlights

Key features

  • 2-Year Warranty
  • 24dB/octave crossover
  • MOSFET power supply
  • Infrasonic filter
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • RCA pass-thru outputs
  • MOSFET output stage
  • MEHSA3
  • TO-247 MOSFETs
  • CTA-2006 Compliant
  • Balanced Differential Inputs
More info

Manufacturer details

The Power T1500-1bdCP is a 1,500 Watt mono amplifier featuring Constant Power delivering up to 25% more power across all impedance loads. The frequency response of the T1500-1bdCP is optimized exclusively for use with subwoofers in cars and trucks.

Additional details

The new Constant Power amplifiers are the most powerful amplifiers on the market PERIOD! The T1500-1bdCP is an amplifier for subwoofers based on the legendary T1500-1bd amplifier design with a proprietary "Constant Power" configuration delivering up to 25% more power (Watts) across all impedance loads. The listening experience is cleaner, louder and more impressive than ever before. At 1,500 watts, this monster will run any demo vehicle competing in Sound Pressure Level.

Looking for more options? Check out all of our mobile power amps here.

Technologies
MEHSA3

MEHSA3

MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life

TO-247 MOSFETs

TO-247 MOSFETs

The MOSFET transistor is the best type of device to use when building a high quality mobile amplifier. The Power

CTA-2006 Compliant

CTA-2006 Compliant

Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your

Balanced Differential Inputs

Balanced Differential Inputs

Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts

Class-BD
Patent: 6,097,249 RE40,550

Class-BD

Rockford Fosgate bd topology is a revolutionary patented design (#6,097,249), integrating a technology that is

Punch Bass EQ

Punch Bass EQ

In the early 70's, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer

DSM

DSM

DSM - An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance

Engineered In The USA

Engineered In The USA

[av• uh•tahr -noun] 1. an embodiment or personification, as of a principle, attitude, or view of life 2. a

Constant Power
Patent: 7,994,857

Constant Power

Music and speakers have a dynamic relationship. As the frequency of music varies, so does the impedance of the

Specs

Specifications

28
Number of Channels1
Total Power (Sum of Rated Power)1500 Watts RMS
Rated Power (RMS Continuous Power)1000 Watts x 1 @ 4-Ohm 1500 Watts x 1 @ 2-Ohm 1500 Watts x 1 @ 1-Ohm
Dynamic Power (PVC/PowerCube®)1045 Watts x 1 @ 4-Ohms 1549 Watts x 1 @ 2-Ohms 1715 Watts x 1 @ 1-Ohm
BridgeableNo
Frequency Response20Hz to 250Hz +/- 0.5dB
Input Sensitivity150 mV to 4 V
Circuit Topology ClassClass BD
Efficiency (average)86.2% @ 4-Ohm 74.6% @ 2-Ohm 63.0% @ 1-Ohm
Total Harmonic Distortion (THD+Noise)4-Ohm: <1.0% 2-Ohm: <1.0% 1-Ohm: <1.0%
Signal InputLow level: 1 RCA pair
Signal OutputLow Level: 1 RCA pair
Tone ControlsBass: 0dB to +18dB @ 45Hz Infrasonic Filter: -3dB @ 28Hz 12dB/Octave
Crossover ControlsLow-Pass (LP): 35-250Hz 24dB/octave Butterworth
Remote ControlsOptional Remote Punch Bass EQ (overrides built-in Punch Bass EQ)
Visual IndicatorsPower Thermal Protect
Power Wire Gauge4 AWG
Power Input ConnectorBlock
Speaker Wire Gauge8 AWG to 18 AWG
Speaker Output ConnectorScrew terminal barrier strip
CoolingConvection
Operating Voltage9 - 16 VDC
Recommended Fuse (not included)200 A
Average Current Draw (13.8V Music)100 A
Max. Current Draw (13.8V Sinewave)200 A
Suggested Alternator100 A
Dimensions (H x W x D)2.14 x 8.14 x 14.91 (in) 5.42 x 20.68 x 37.86 (cm)
Shipping Weight14.35 Lbs. (6.50 Kg.)
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Installation resources

Wiring diagrams

11
Wiring Diagram #1

Wiring Diagram #1

Source: Rockford Fosgate

Wiring Diagram #2

Wiring Diagram #2

Source: Rockford Fosgate

Wiring Diagram #3

Wiring Diagram #3

Source: Rockford Fosgate

Wiring Diagram #4

Wiring Diagram #4

Source: Rockford Fosgate

Wiring Diagram #5

Wiring Diagram #5

Source: Rockford Fosgate

Wiring Diagram #6

Wiring Diagram #6

Source: Rockford Fosgate

Wiring Diagram #7

Wiring Diagram #7

Source: Rockford Fosgate

Wiring Diagram #8

Wiring Diagram #8

Source: Rockford Fosgate

Wiring Diagram #9

Wiring Diagram #9

Source: Rockford Fosgate

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