09 630 0677 dsmteden@xtra.co.nz

415 Dominion Road, Mt Eden, Auckland 1024



$399.00 $229.00

2 in stock


Rockford Fosgate power for your speakers

Rockford Fosgate performance in a small package. The Prime Series R250X4 4-channel amp can drive your speakers with 40 watts RMS each, so you’ll really feel your tunes rockin’. Or, you could switch the R250X4 to 2-channel mode to run a couple of subs with 125 watts RMS each — when you buy a bigger amp for your subs later on, you can still use this 4-channel to drive all your speakers. Smart move.

Prime 250 Watt 4-Channel Amplifier

The Prime R250X4 is a 250 watt 4-channel amplifier capable of running 2-Ohms stereo on all channels and 4-Ohms bridged/mono on the rear channels. Includes on-board Punch Bass and front/rear crossover controls.

  • 12dB/octave Butterworth crossover
  • 0/6/12 dB On Board Punch EQ Control
  • 2/4 channel input switch
  • High Level Input (4-pin)
  • Separate Front and Rear Gain Control
  • Real time output and power supply thermal sensing
  • Cast aluminum heatsink
  • 4 Gauge power/ground connectors
  • MOSFET power supply
  • Over current protection
  • Short circuit protection
  • Muted turn on
  • 1 Year Standard Warranty warranty info

The Prime R250X4 is a 4-Channel amplifier perfect for any Car Audio Fanatic getting into mobile audio wanting a single amplifier to run a complete audio system. This amplifier features selectable Punch Bass to tune low frequencies, variable crossovers to either protect your high frequency speakers or feeding only bass to your subwoofers, and Pass-Thru jacks for daisy-chaining another amplifier.

CEA-2006 Compliant: CEA-2006 Power Rating
40W x 4 @ 4Ω
≤1.0% THD+N

Number of Channels: 4

Rated Power
(RMS Continuous Power):
40 Watts x 4 @ 4-Ohms
60 Watts x 4 @ 2-Ohms
125 Watts x 2 @ 4-Ohms Bridged

Total Power
(Sum of Rated Power):
250 Watts RMS

Dynamic Power
54 Watts x 4 @ 4-Ohms 0° Res
82 Watts x 4 @ 2-Ohms 0° Res

Bridgeable: Yes

Frequency Response: 20Hz to 20kHz +/-1dB

Efficiency (average): 64% @ 4-Ohm

Total Harmonic Distortion (THD+Noise): 4-Ohm: <1.0%
2-Ohm: <1.0%

Crossover Controls: Front Channels
High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave ButterworthRear Channels
High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave Butterworth

Tone Controls: Punch Bass: 0dB/+6dB/+12dB @ 45Hz

Input Sensitivity: 150 mV to 4 V

Signal Input: Low Level: 2 RCA Pair
High Level: 2 x 4-pin MOLEX

Signal Output:

Power Input Connector: Barrier Strip

Power Wire Gauge: 4 AWG

Speaker Output Connector: Barrier Strip

Speaker Wire Gauge: 8 AWG

Heat Sink Type: Extruded Aluminum

Cooling: Convection

Remote Controls:

Visual Indicators: Power/Protect LED

Circuit Topology Class: Class-A/B

Operating Voltage: 9 – 16 VDC

Recommended Fuse
(not included):
50 A

Max. Current Draw (13.8V Sinewave): 40 A

Average Current Draw (13.8V Music): 20 A

Suggested Alternator: 75 A

Shipping Weight: 7 Lbs. (3.17 Kg.)

Dimensions (H x W x D): 1.98 x 6.77 x 11.22 (in)
5 x 17.2 x 28.5 (cm)

Dimensional Diagram:


Additional information

Weight 3.0 kg


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