Rockford Fosgate T500-1bdCP 500 Watt Class-bd Constant Power Amplifier

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Rockford Fosgate T500-1bdCP 500 Watt Class-bd Constant Power Amplifier


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500 Watt Class-bd Constant Power Amplifier

The Power T500-1bdCP is a 500 Watt mono amplifier featuring Constant Power delivering up to 25% more power across all impedance loads. The frequency response of the T500-1bdCP is optimized exclusively for use with subwoofers.

  • 24dB/octave crossover
  • MOSFET power supply
  • MOSFET output stage
  • 4 Gauge power/ground connectors
  • Audiophile grade speaker connections
  • RCA pass-thru outputs
  • Infrasonic filter
  • 2 Years Standard Warranty 


The T500-1bdCP is based on the legendary T500-1bd 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. With the T500-1bdCP, you can now use an “under-the-seat” dedicated subwoofer amplifier to drive two 4-Ohm DVC subwoofers. This amp will provide enough bass to separate you from those envious car audio geeks.


CEA-2006 Compliant:
Number of Channels: 1
Rated Power 
(RMS Continuous Power):
300 Watts x 1 @ 4-Ohm 
500 Watts x 1 @ 2-Ohm 
500 Watts x 1 @ 1-Ohm
Total Power 
(Sum of Rated Power):
500 Watts RMS
Dynamic Power 
328 Watts x 1 @ 4-Ohms 
537 Watts x 1 @ 2-Ohms 
707 Watts x 1 @ 1-Ohm
Bridgeable: No
Frequency Response: 20Hz to 250Hz +/- 0.5dB
Efficiency (average): 86.2% @ 4-Ohm 
82.3% @ 2-Ohm 
73.4% @ 1-Ohm
Total Harmonic Distortion(THD+Noise): 4-Ohm: <1.0% 
2-Ohm: <1.0% 
1-Ohm: <1.0%
Crossover Controls: Low-Pass (LP): 35-250Hz 24dB/octave Butterworth
Tone Controls: Bass: 0dB to +18dB @ 45Hz 
Infrasonic Filter: -3dB @ 28Hz 12dB/Octave
Input Sensitivity: 150 mV to 4 V
Signal Input: Low level: 1 RCA pair
Signal Output: Low Level: 1 RCA pair
Power Input Connector: Block
Power Wire Gauge: 4 AWG
Speaker Output Connector: Screw terminal barrier strip
Speaker Wire Gauge: 8 AWG to 18 AWG
Heat Sink Type: Cast aluminum
Cooling: Convection
Remote Controls: Optional Remote Punch Bass EQ 
(overrides built-in Punch Bass EQ)
Visual Indicators: Power 
Circuit Topology Class: Class-BD
Operating Voltage: 9 – 16 VDC
Recommended Fuse 
(not included):
80 A
Max. Current Draw (13.8V Sinewave): 70 A
Average Current Draw (13.8V Music): 35 A
Suggested Alternator: 75 A
Shipping Weight: 13.39 Lbs. (6.07 Kg.)
Dimensions (HxWxL): 2.14 x 8.14 x 11.41 (in) 
5.42 x 20.68 x 28.97 (cm)
Dimensional Diagram:
0.0000 kg

Rockford Fosgate T500-1bdCP


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For over 40 years Rockford Fosgate has produced audio products for cars, boats and recreational vehicles.

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