ROCKFORD FOSGATE
Rockford Fosgate Prime 750 Watt Class-D Mono Amplifier
The PRIME R750-1D is an ultra-efficient mono amplifier that can produce 750 Watts into a 1-Ohm load without taxing the electrical system. The frequency response of the R750-1D is optimized exclusively for use with subwoofers.
The Prime R750-1D amplifier offers high efficiency through the implementation of its Class-D circuitry while delivering rich, full bass to any system. This amplifier is optimized for subwoofers with the implementation of an infrasonic filter to keep those ultra-low (inaudible) bass notes from damaging your subwoofer system. Match with a 4-channel stereo amplifier for your mids/highs and you'll have a Rockford Fosgate system that any Car Audio Fanatic will envy.
- 12dB/octave Butterworth crossover
- Infrasonic filter
- On-board Punch EQ with +18dB boost @ 45Hz
- Remote PLC (Punch Level Control)
- RCA pass-thru outputs
- Real time output and power supply thermal sensing
- Cast aluminum heatsink
- Top mounted controls
- 4 Gauge power/ground connectors
- MOSFET power supply
- Short circuit protection
- Muted turn on
- 1 Year Warranty
Remote Controls
Punch Level Control
(when connected, is linked to "gain control" to provide remote output level)
(when connected, is linked to "gain control" to provide remote output level)
Visual Indicators
Power
Protect
Protect
Power Wire Gauge
4 AWG
Power Input Connector
Block
Speaker Wire Gauge
12 AWG
Speaker Output Connector
Block
Cooling
Convection
Heatsink
Operating Voltage
9 - 16 VDC
Recommended Fuse
(not included)
(not included)
100 A
Average Current Draw (13.8V Music)
40 A
Max. Current Draw (13.8V Sinewave)
80 A
Suggested Alternator
75 A
Dimensional Diagram
Dimensions (H x W x D)
1.97" x 6.77" x 9.10"
(5cm x 17.20cm x 23.10cm)
(5cm x 17.20cm x 23.10cm)
Shipping Weight
6.6 Lbs. (2.99 Kg.)
CEA-2006 Compliant
CEA-2006 Power Rating250W x 1 @ 4Ω
≤1.0% THD+N
Number of Channels
4
Total Power
(Sum of Rated Power)
(Sum of Rated Power)
750 Watts RMS
Rated Power
(RMS Continuous Power)
(RMS Continuous Power)
250 Watts x 1 @ 4-Ohm
500 Watts x 1 @ 2-Ohm
750 Watts x 1 @ 1-Ohm
500 Watts x 1 @ 2-Ohm
750 Watts x 1 @ 1-Ohm
Dynamic Power
(PVC/PowerCube®)
(PVC/PowerCube®)
310 Watts x 1 @ 4-Ohms 0° Res
567 Watts x 1 @ 2-Ohms 0° Res
966 Watts x 1 @ 1-Ohm 0° Res
567 Watts x 1 @ 2-Ohms 0° Res
966 Watts x 1 @ 1-Ohm 0° Res
Bridgeable
No
Frequency Response
20Hz to 250Hz +/-1dB
Input Sensitivity
150 mV to 4 V
Circuit Topology Class
Class D
Efficiency (average)
85% @ 4-Ohm
85% @ 2-Ohm
80% @ 1-Ohm
85% @ 2-Ohm
80% @ 1-Ohm
Total Harmonic Distortion (THD+Noise)
4-Ohm: <1.0%
2-Ohm: <1.0%
1-Ohm: <1.0%
2-Ohm: <1.0%
1-Ohm: <1.0%
Signal Input
Low Level: 1 RCA Pair
Signal Output
Low Level: 1 RCA Pair
Tone Controls
0dB to +18dB @ 45Hz
Crossover Controls
Low-Pass: Variable 50Hz - 500Hz @ 12dB/Octave
Infrasonic:
Infrasonic: