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The Rockford Fosgate Power 2500 Watt Class-bd Constant Power Amplifier delivers massive, clean bass and dependable performance for multi‑sub setups; reviewers praise its underrated output, sound clarity, and day‑to‑day reliability.
Buyer confidence
86%Highlights
- 2-Year Warranty
- 1/0 AWG power/ground connectors
- Blue L.E.D. Simulated VU Signal/Power Meters
- 0°/180° Phase Switch
Key specs
Full specs- Number of Channels
- 1
- Total Power (Sum of Rated Power)
- 2500 Watts RMS
- Rated Power (RMS Continuous Power)
- 1500 Watts x 1 @ 4-Ohm 2500 Watts x 1 @ 2-Ohm 2500 Watts x 1 @ 1-Ohm Two amplifiers in bdSYNC: 5000 Watts x 1 @ 2-Ohm
- Dynamic Power (PVC/PowerCube®)
- 1823 Watts x 1 @ 4-Ohm 2940 Watts x 1 @ 2-Ohm 2980 Watts x 1 @ 1-Ohm
- Bridgeable
- Yes (two amps can be "strapped" together using bd-Sync2 cable to create one monster amplifier)
- 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)
- 2500 Watts RMS
- Rated Power (RMS Continuous Power)
- 1500 Watts x 1 @ 4-Ohm 2500 Watts x 1 @ 2-Ohm 2500 Watts x 1 @ 1-Ohm Two amplifiers in bdSYNC: 5000 Watts x 1 @ 2-Ohm
- Dynamic Power (PVC/PowerCube®)
- 1823 Watts x 1 @ 4-Ohm 2940 Watts x 1 @ 2-Ohm 2980 Watts x 1 @ 1-Ohm
Highlights
Overview- 2-Year Warranty
- 1/0 AWG power/ground connectors
- Blue L.E.D. Simulated VU Signal/Power Meters
Review highlights
Based on customer reviewsMonstrous, clean subwoofer power with reliable operation
The Rockford Fosgate Power 2500 Watt Class-bd Constant Power Amplifier delivers massive, clean bass and dependable performance for multi‑sub setups; reviewers praise its underrated output, sound clarity, and day‑to‑day reliability.
What buyers praise
- Reported output exceeds the 2500W rating — very high actual power
- Clean, punchy bass that drives multiple subwoofers effectively
What to watch for
- Requires a strong electrical system — reviewers recommend a high‑output alternator or extra batteries
Overview
The Power T2500-1bdCP is a 2,500 watt Class-BD mono amplifier that uses Rockford Fosgate’s proprietary Constant Power configuration to increase available output across impedance loads.
Best for
- Driving large subwoofer arrays wired to a 1-ohm load
- High-output car audio systems where maximum mono power is required
- Pairing two amps in bdSYNC/Power-Sync for combined high-power setups (up to 5,000W)
Key points
- 2,500 watt mono amplifier (Class-BD)
- Constant Power design — based on the T2500-1bd platform and engineered to deliver up to 25% more power across impedance loads
- Supports 1-ohm loads for heavy subwoofer arrays
- Balanced differential inputs for noise-resistant signal connection
- Includes Punch Bass EQ and DSM; CTA-2006 compliant
- Technologies: MEHSA3, TO-247 MOSFETs, CTA-2006 compliant, Balanced Differential Inputs, Class-BD, Punch Bass EQ, DSM, Engineered In The USA
Fit and use
Use the T2500-1bdCP when you need a dedicated mono amplifier capable of driving multiple woofers or high-SPL systems. It is designed to run stable on low-impedance loads (1 ohm) and can be paired with a second T2500-1bdCP in bdSYNC/Power-Sync mode to combine outputs for higher total power.
What to know
Constant Power increases available output across impedance ranges; review system impedance and wiring before connecting loads. High-power operation requires appropriate power wiring, battery/alternator capacity, and ventilation — verify your vehicle’s electrical and cooling capacity. Pairing two amplifiers in bdSYNC/P…
Highlights
Key features
- 2-Year Warranty
- 1/0 AWG power/ground connectors
- Blue L.E.D. Simulated VU Signal/Power Meters
- 0°/180° Phase Switch
- 24dB/octave crossover
- Infrasonic filter
- MOSFET output stage
- PowerSync - allows 2 amplifiers to be "strapped" together
- MasterSync - allows 1 amplifier to control an array of amplifiers
- Audiophile grade speaker connections
- RCA pass-thru outputs
- MOSFET power supply
More info
Manufacturer details
The Power T2500-1bdCP is a 2,500 Watt mono amplifier featuring Constant Power. The T2500-1bdCP is so flexible and powerful you can use a pair in bdSYNC mode to create one massive amplifier that can deliver a whopping 5 Kilowatts.
Additional details
The T2500-1bdCP is based on the legendary T2500-1bd amplifier design with a proprietary "Constant Power" configuration that delivers up to 25% more power (Watts) across all impedance loads. The result is a listening experience cleaner, louder and more impressive than ever before. This T2500-1bdCP amplifier pumps out 2,500 watts, easily driving any array of woofers wired to a 1-ohm load. Use two amps in Power-Sync mode for a whopping 5,000 watt power horse!
Technologies
MEHSA3
MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life
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
Power ratings on Rockford Fosgate amplifiers conform to CTA-2006 industry standards. These guidelines mean your
Balanced Differential Inputs
Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts
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
In the early 70's, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer
DSM
DSM - An industry-leading manufacturing process, DSM utilizes high-speed robotics, high-quality 1% tight-tolerance
Engineered In The USA
[av• uh•tahr -noun] 1. an embodiment or personification, as of a principle, attitude, or view of life 2. a
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 Channels | 1 |
| Total Power (Sum of Rated Power) | 2500 Watts RMS |
| Rated Power (RMS Continuous Power) | 1500 Watts x 1 @ 4-Ohm 2500 Watts x 1 @ 2-Ohm 2500 Watts x 1 @ 1-Ohm Two amplifiers in bdSYNC: 5000 Watts x 1 @ 2-Ohm |
| Dynamic Power (PVC/PowerCube®) | 1823 Watts x 1 @ 4-Ohm 2940 Watts x 1 @ 2-Ohm 2980 Watts x 1 @ 1-Ohm |
| Bridgeable | Yes (two amps can be "strapped" together using bd-Sync2 cable to create one monster amplifier) |
| Frequency Response | 20Hz to 250Hz +/-0.5dB |
| Input Sensitivity | 150 mV to 4 V |
| Circuit Topology Class | Class BD |
| Efficiency (average) | 81.9% @ 4-Ohm 77.7% @ 2-Ohm 64.5% @ 1-Ohm |
| Total Harmonic Distortion (THD+Noise) | 4-Ohm: <1.0% 2-Ohm: <1.0% 1-Ohm: <1.0% |
| Signal Input | 1 RCA pair |
| Signal Output | 1 RCA pair |
| Tone Controls | Bass: 0dB to +18dB @ 45Hz |
| Crossover Controls | Low-Pass (LP): 35Hz-250Hz @ 24dB/octave Butterworth Infrasonic: 12dB/octave Butterworth, -3dB @ 28Hz |
| Remote Controls | Optional Remote PEQ (overrides built-in Punch Bass) |
| Visual Indicators | Power (Blue LED) Thermal (Red LED) Protect (Yellow LED) Output -00dB to +2dB @ 11 steps (Blue LEDs) Battery 9VDC to 16VDC @ 11 steps (Blue LEDs) |
| Power Wire Gauge | 1/0 AWG |
| Power Input Connector | Block |
| Speaker Wire Gauge | 8 AWG to 16 AWG |
| Speaker Output Connector | Block |
| Cooling | Convection |
| Operating Voltage | 9 - 16 VDC |
| Recommended Fuse (not included) | 300 A |
| Average Current Draw (13.8V Music) | 175 A |
| Max. Current Draw (13.8V Sinewave) | 350 A |
| Suggested Alternator | 200 A |
| Dimensions (H x W x D) | 2.14 x 8.14 x 21.875 (in) 5.44 x 20.68 x 55.66 (cm) |
| Shipping Weight | 21.7 Lbs. (9.84 Kg.) |
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Installation resources
Wiring diagrams
11
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.
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