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Rockford Fosgate PM500X1bd Punch Marine 500 Watt Class-bd Mono Amplifier

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SKU: PM500X1bd
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The PM500X1bd Will Drop Some Serious Bass!


The PM500X1bd is a 500 Watt mono amplifier with high dynamic power using Class-bd technology and a conformal coated pc board designed for motorsport and marine applications.

With its super efficient Class-bd circuit topology, the PM500X1bd will drop some serious BASS! Due to its dedicated low frequency response, this amplifier is optimized for mid-bass speakers or subwoofers only. No need to worry because its 1-ohm capability will drive a pair of 4-ohm DVC subwoofers or quad-configuration of 2-ohm DVC subwoofers with ease.


  • High level input capable with Auto Turn-On circuit
  • Features C.L.E.A.N. Set-up
  • Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator)
  • RCA pass-thru outputs
  • 12dB/octave Butterworth crossover
  • On-board Punch EQ with +18dB boost @ 45Hz
  • Muted turn on
  • Stealth top mounted control panel
  • Cast aluminum heatsink
  • Short circuit protection
  • Over current protection
  • Infrasonic filter
  • Marine grade two part epoxy coating on circuit boards
  • Marine grade stainless steel hardware


  • Operating Voltage 9 – 16 VDC
  • Max. Current Draw (13.8V Sinewave) 70 A
  • Crossover Controls Low-Pass (LP): 50-250Hz @ 12dB/octave Butterworth / Infrasonic Filter (IF): 28Hz @ 12dB/Octave / All-Pass (AP): No
  • Rated Power (RMS Continuous Power) 150 Watts x 1 @ 4-Ohm, 300 Watts x 1 @ 2-Ohm, 500 Watts x 1 @ 1-Ohm
  • Suggested Alternator 75 A
  • Recommended Fuse (not included) 80 A
  • Average Current Draw (13.8V Music) 35 A
  • Total Harmonic Distortion (THD+Noise) 4-Ohm: <1.0%, 2-Ohm: <1.0%, 1-Ohm: <1.0%
  • Efficiency (average) 86% @ 4-Ohm
  • Dynamic Power (PVC/PowerCube®) 224 Watts x 1 @ 4-Ohm, 410 Watts x 1 @ 2-Ohm, 787 Watts x 1 @ 1-Ohm
  • Shipping Weight 10.8 lbs. (4.89 Kg.)
  • Input Sensitivity 150 mV – 12 V
  • Number of Channels 1
  • Total Power (Sum of Rated Power) 500 Watts
  • Bridgeable No
  • CEA-2006 Compliant
  • CEA-2006 Power Rating 150W x 1 @ 4Ω, ≤1.0% THD+N
  • Tone ControlsPunch EQ2 Bass: 0dB to +18dB @ 45Hz
  • Signal Input Hi/Low level: 1 RCA pair
  • Power Input Connector Captive C-Clamp
  • Power Wire Gauge 4 AWG
  • Signal Output Low level: 1 RCA pair
  • Speaker Output Connector Captive C-Clamp
  • Speaker Wire Gauge 8 AWG to 18 AWG
  • Heat Sink Type Cast aluminum
  • Cooling Convection
  • Remote Controls Optional Punch Level Control (PLC2) Ready
  • Visual Indicators Power/Protect/Thermal LED / Input Clip LED3 / Output Clip LED1,2,3 | LED Color Legend: 1BLUE: <0.5% THD / 2VIOLET: 1% THD / 3RED: 10%+ THD
  • Circuit Topology Class Class BD
  • Frequency Response 20Hz to 250Hz +/- 1.0dB
  • Dimensions (H x W x D) 2.38 x 7.76 x 11.03 (in) 6.05 x 19.71 x 28.02 (cm)

Rockford Fosgate PM500X1bd Specs

Weight 4.89 kg

Rockford Fosgate: Revolutionizing Audio in Automotive, Marine, and Motorcycle Industries

Rockford Fosgate, an iconic American brand, has carved a niche in the audio industry, particularly in automotive, marine, and motorcycle sectors. Known for their robust and high-quality audio products, Rockford Fosgate continues to innovate and provide exceptional sound systems that cater to audiophiles and enthusiasts who demand superior sound quality and durability in challenging environments.

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