If you've been searching for the big boss man of bass, say hello to the Big Dog — Rockford Fosgate's Power bd1500.1. Thanks to Class bd technology (Rockford Fosgate's patented amp design), this mono machine boasts an amazing 75% efficiency rating with a highly stable output. Even when cranked to the max, it will maintain steady power flow and a cool temperature, saving your music from clipping and distortion.

Class bd efficiency also allows Rockford Fosgate to design this amp with a smaller footprint, giving you more installation options than high-power amps usually afford. Hooked up to a 2-ohm load, the Power bd1500.1 will rock your world with an awesome 1500 watts — that's one Big Dog with a bark to match!

Important Note: Because of this amp's 150-amp fuse rating, 4-gauge wiring kits cannot be used alone to install the amp. Please call a Sales Advisor at 1-888-955-6000 for wiring recommendations.

  • Class bd technology for exceptional efficiency
  • 750 watts RMS x 1 at 4 ohms
  • 1500 watts x 1 at 2 ohms
  • selectable 50-250 Hz variable low-pass crossover, 24 dB/octave
  • MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability.
  • TOPAZ noise-killing differential inputs eliminate 80% of ground loop noise between the head unit and the amp.
  • NOMAD advanced protection circuitry monitors temperature, voltage, current and impedence, and provides "intelligent" shut-down protection without limiting system performance.
  • preamp outputs for easy connection to a second amplifier
  • wired remote control of Punch Bass (0-18 dB centered at 45 Hz) — gives you fingertip control of your bass impact
  • subsonic filter removes frequencies below the range of human hearing for increased efficiency
  • 150-amp fuse and fuse holder required (sold separately)
  • dimensions: 18-1/2"W (13-11/16" without endcaps) x 2-7/16"H x 9-7/8"D
  • 3-year warranty
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Hands-on research

What's in the box?

Download owner's manual

  • Remote Punch Bass control
  • 15' Remote Punch Bass cable
  • Remote Punch Bass mounting bracket
  • Two 3/8" self-tapping screws
  • Self-adhesive Remote Punch Bass control decal
  • Remote Punch Bass control knob
  • Four 3/4" self-tapping screws
  • One 9/64" Allen wrench
  • One 3/32" Allen wrench
  • One 1/8" Allen wrench Two 3/32" Allen screws
  • Two 1/8" Allen screws
  • Four 9/64" Allen screws Operation & Installation Manual
  • Punch Verification Certificate
  • "Team RF" sticker

Product Research

Inputs and Outputs
Wiring Recommendations


STARDUST Class BD Design (Single-Terminal Alternating Rail DUal Sampling Topology): STARDUST Class bd design offers 75% efficiency with a highly stable output.

Cast Aluminum Heatsink: The cast aluminum heatsink dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.

TOPAZ (Tracking Operation Pre-Amplifier Zone): TOPAZ is a circuit that simply eliminates noise. The TOPAZ circuit allows the amplifier ground to move with the source unit ground, creating a "noise elimination" zone just before the preamp section. If there is any noise in the ground coming down the RCA line to the amplifier, TOPAZ amazingly tracks it down and eliminates it. The result is a 30-40dB improvement of the isolation between input ground and chassis ground. 

DSM (Discrete Surface Mount): In the manufacturing process high speed robotics are used to place 0% tolerance resistors and large board traces providing greater reliability and efficiency.

Internal Crossover: The internal low-pass crossover is a 24dB/octave Butterworth filter with a crossover point variable from 50Hz to 250Hz.

Subsonic Filter: The subsonic filter prevents frequencies below the audio range from being amplified. This allows the amplifier to run more efficiently with increased power output.

POWERsync: This feature allows this amplifier's power to be joined with the power of another Class bd amplifier using a bd Sync cable (not supplied). Once joined together, you can power a single woofer using both amplifiers.

Remote Punch Bass: The Punch Bass helps correct for acoustical deficiencies in the listening environment by helping reproduce full range sound without adding excessive boost. The Punch Bass control has a narrow band adjustment centered at 45Hz, variable from 0dB to +18dB. Using the mounting bracket, the supplied Punch Bass wired remote can be mounted in any convenient location under your vehicle's dash. The wired remote is 2.317" wide, 1.523" tall and 2.035" deep.

RCA Pass-Thru Jacks: The pass-thru jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. The pass-thru jacks output a full signal.

RF Center Badge: For installation flexibility, the RF center badge can be rotated 180 degrees.


Left Side of Amplifier:

  • Subsonic Filter Switch: allows you to turn the subsonic filter On or Off
  • Crossover Frequency: the crossover frequency control is variable from 50Hz to 250Hz and has a 24db/octave slope
  • Gain: this variable gain control allows you to adjust the output level of the amplifier
  • Phase Switch: allows you to select 0 or 180 degrees
  • Protect LED: glows green when the amplifier is in protect mode

Inputs and Outputs

Left Side of Amplifier:

  • Input: gold-plated RCA jacks
  • Pass-Thru: gold-plated RCA jacks
  • Remote Punch Bass: RJ-45 jack for use with supplied Remote Punch Bass wired remote

Right Side of Amplifier:

  • Speakers: gold-plated set screw terminals that will accept up to 8 gauge speaker wire
  • GND: gold-plated set screw terminal that will accept up to 4 gauge ground wire
  • B+: gold-plated set screw terminal that will accept up to 4 gauge power wire
  • REM: gold-plated 0.250" quick-slide for remote turn-on lead. Note: A female quick-slide is not supplied.
  • BD Sync: 6-pin mini-DIN connector. Used to POWERsync this amplifier with another Class bd amplifier. Note: The bd Sync cable is not supplied.

Wiring Recommendations

Wiring Recommendations: This amplifier uses a 150-amp fuse, so its fuse rating exceeds that of typical 4 gauge wiring kits, which tend to include a 60-amp fuse. For 150-amp fuse protection, an ANL wafer style fuse is required, but none of the 4-gauge wiring kits include an ANL-style fuse holder. Since pre-packaged amplifier wiring kits cannot be used alone, you may purchase all the necessary items separately, or you may use a pre-packaged 4 gauge wiring kit along with an ANL-style fuse holder and a 150-amp ANL wafer fuse. If you do not use a wiring kit with the necessary additional items, the separate parts and wiring needed to install this amplifier are as follows:

  • 1 ANL wafer-style fuse holder capable of accepting 4 gauge wire
  • One 150-amp ANL wafer fuse
  • 2 power rings for 4 gauge cable
  • 4 gauge power cable (to connect the battery to a fuse holder and the fuse holder to the amplifier)
  • 4 gauge ground cable 
  • Remote turn-on cable (speaker wire can be used as remote turn-on cable)
  • 1 stereo RCA patch cables
  • Speaker wire

Our Product Research Team

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