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The Rockford Fosgate Punch P500X1bd delivers punchy, clean low-end with easy setup and reliable low‑impedance performance, making it a popular choice for driving subwoofers.
Buyer confidence
84%Highlights
- 1 Year Warranty
- Muted turn on
- High level input capable with Auto Turn-On circuit
- Features C.L.E.A.N. Set-up
Key specs
Full specs- Number of Channels
- 1
- Total Power (Sum of Rated Power)
- 500 Watts
- Rated Power (RMS Continuous Power)
- 150 Watts x 1 @ 4-Ohm 300 Watts x 1 @ 2-Ohm 500 Watts x 1 @ 1-Ohm
- Dynamic Power (PVC/PowerCube®)
- 224 Watts x 1 @ 4-Ohm 410 Watts x 1 @ 2-Ohm 787 Watts x 1 @ 1-Ohm
- Bridgeable
- No
- Frequency Response
- 20Hz to 250Hz +/- 1.0dB
- Input Sensitivity
- 150 mV - 12 V
- Circuit Topology Class
- Class BD
Key specs
Full specs- Number of Channels
- 1
- Total Power (Sum of Rated Power)
- 500 Watts
- Rated Power (RMS Continuous Power)
- 150 Watts x 1 @ 4-Ohm 300 Watts x 1 @ 2-Ohm 500 Watts x 1 @ 1-Ohm
- Dynamic Power (PVC/PowerCube®)
- 224 Watts x 1 @ 4-Ohm 410 Watts x 1 @ 2-Ohm 787 Watts x 1 @ 1-Ohm
Highlights
Overview- 1 Year Warranty
- Muted turn on
- High level input capable with Auto Turn-On circuit
Review highlights
Based on customer reviewsRockford Fosgate Punch 500 Watt Class-bd Mono Amplifier — punchy, clean bass
The Rockford Fosgate Punch P500X1bd delivers punchy, clean low-end with easy setup and reliable low‑impedance performance, making it a popular choice for driving subwoofers.
What buyers praise
- Punchy, clean low-frequency output with minimal distortion reported by many reviewers
- Easy to set up and tune — intuitive controls and visible indicator lights plus a remote level control
What to watch for
- May not meet every user’s power expectations — at least one reviewer found it underpowered for their needs
Overview
The Punch P500X1bd is a mono car audio amplifier rated for 500 Watts into a 1‑Ohm load. Its Class‑BD circuit topology is designed to deliver efficient, dedicated low‑frequency output for subwoofers and mid‑bass speakers.
Best for
- Driving subwoofers or mid‑bass speakers
- Applications that require a 1‑ohm capable mono amplifier
- Systems needing efficient bass output with focused low‑frequency response
Key points
- 500 Watts into a 1‑Ohm load
- Class‑BD circuit topology for higher efficiency compared with traditional designs
- Dedicated low‑frequency response optimized for subwoofers and mid‑bass
- 1‑ohm capability can drive a pair of 4‑ohm DVC subwoofers or a quad configuration of 2‑ohm DVC subwoofers
- Balanced Differential Inputs
- C.L.E.A.N. Technology
Fit and use
This is a single‑channel (mono) amplifier intended for low‑frequency duties. Use it where a dedicated subwoofer amplifier is required and where a 1‑ohm stable amp is needed for dual or multiple DVC subwoofer configurations.
What to know
The P500X1bd is optimized for bass and mid‑bass applications, not for powering full‑range speakers. Class‑BD improves efficiency for bass reproduction. For detailed specifications, wiring, and setup considerations, refer to the manufacturer manual and support resources.
Highlights
Key features
- 1 Year Warranty
- Muted turn on
- 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)
- Stealth top mounted control panel
- Cast aluminum heatsink
- Over current protection
- Short circuit protection
- 12dB/octave Butterworth crossover
- RCA pass-thru outputs
- Infrasonic filter
More info
Manufacturer details
The Punch P500X1bd is a mono amplifier capable of 500 Watts into a 1-Ohm load. The Class-BD technology produces bass more efficiently over traditional amps, and its frequency response allows it to be optimized for subwoofers.
Additional details
With its super efficient Class-bd circuit topology, the P500X1bd 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.
Technologies
CTA-2006 Compliant
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your
Engineered In The USA
[av• uh•tahr -noun] 1. an embodiment or personification, as of a principle, attitude, or view of life 2. a
DSM
DSM - An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance
Patent: 8,712,066
C.L.E.A.N. Technology
Time and sophisticated test equipment have been replaced, with Rockford’s integrated level setting technology
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
CE Compliant
This product fulfills all essential safety and environmental requirements as defined in the European Directives
NOMAD
NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and ...
Balanced Differential Inputs
Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts
MEHSA3
MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life
Specs
Specifications
28
| Number of Channels | 1 |
| Total Power (Sum of Rated Power) | 500 Watts |
| Rated Power (RMS Continuous Power) | 150 Watts x 1 @ 4-Ohm 300 Watts x 1 @ 2-Ohm 500 Watts x 1 @ 1-Ohm |
| Dynamic Power (PVC/PowerCube®) | 224 Watts x 1 @ 4-Ohm 410 Watts x 1 @ 2-Ohm 787 Watts x 1 @ 1-Ohm |
| Bridgeable | No |
| Frequency Response | 20Hz to 250Hz +/- 1.0dB |
| Input Sensitivity | 150 mV - 12 V |
| Circuit Topology Class | Class BD |
| Efficiency (average) | 86% @ 4-Ohm |
| Total Harmonic Distortion (THD+Noise) | 4-Ohm: <1.0% 2-Ohm: <1.0% 1-Ohm: <1.0% |
| Signal Input | Hi/Low level: 1 RCA pair |
| Signal Output | Low level: 1 RCA pair |
| Tone Controls | Punch EQ2 Bass: 0dB to +18dB @ 45Hz |
| Crossover Controls | Low-Pass (LP): 50-250Hz @ 12dB/octave Butterworth Infrasonic Filter (IF): 28Hz @ 12dB/Octave All-Pass (AP): No |
| 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 |
| Power Wire Gauge | 4 AWG |
| Power Input Connector | Captive C-Clamp |
| Speaker Wire Gauge | 8 AWG to 18 AWG |
| Speaker Output Connector | Captive C-Clamp |
| Cooling | Convection |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 80 A |
| Average Current Draw (13.8V Music) | 35 A |
| Max. Current Draw (13.8V Sinewave) | 70 A |
| Suggested Alternator | 75 A |
| Dimensions (H x W x D) | 2.38 x 7.76 x 11.03 (in) 6.05 x 19.71 x 28.02 (cm) |
| Shipping Weight | 10.8 Lbs. (4.89 Kg.) |
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Installation resources
Wiring diagrams
10
Wiring Diagram #1
Source: Rockford Fosgate
Wiring Diagram #2
Source: Rockford Fosgate
Wiring Diagram #3
Source: Rockford Fosgate
Wiring Diagram #4
Source: Rockford Fosgate
Wiring Diagram #5
Source: Rockford Fosgate
Wiring Diagram #6
Source: Rockford Fosgate
Wiring Diagram #7
Source: Rockford Fosgate
Wiring Diagram #8
Source: Rockford Fosgate
Wiring Diagram #9
Source: Rockford Fosgate
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
Popular Questions
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