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Rockford Fosgate R2-250X1 Prime mono subwoofer amplifier, black metal chassis with silver knobs and terminals

Rockford Fosgate

Rockford Fosgate R2-250X1 Prime mono subwoofer amplifier

SKU CH-Y7E5-7V8ND

Mono subwoofer amplifier delivers 250 watts RMS at 2 ohms with variable low-pass crossover and infrasonic filter

  • Product typeAmplifiers
  • Key featuresPrime Series mono subwoofer amplifier
  • Delivers 250 watts RMS into 2 ohms for strong bass output
  • Provides 150 watts RMS at 4 ohms for flexible subwoofer wiring
  • Variable 50 Hz to 250 Hz low-pass crossover tailors frequency response
  • Variable 15 Hz to 50 Hz infrasonic filter protects the subwoofer from ultra-low frequencies
  • CTA-2006 compliant ratings ensure the published power figures are verified

Prime Series mono subwoofer amplifier

The Rockford Fosgate R2-250X1 is a mono subwoofer amplifier built for car-audio systems that need dedicated bass power. It delivers 150 watts RMS at 4 ohms and 250 watts RMS at 2 ohms, giving installers flexible wiring options for single or dual voice-coil subwoofers. CTA-2006 compliant ratings ensure the output figures are verified and comparable. The Class-D design keeps the chassis compact for tight mounting locations.

Thermals noise and power draw

Class-D topology runs efficiently, reducing current draw and heat buildup during extended listening sessions. The variable infrasonic filter adjustable from 15 to 50 Hz removes sub-sonic content that wastes amplifier headroom and stresses the subwoofer. A 12 dB per octave Butterworth low-pass crossover variable from 50 to 250 Hz shapes the bandwidth cleanly. Auto remote turn-on with a defeat switch simplifies integration while preventing unwanted activation.

Build fit and wiring needs

The amplifier requires 8-gauge power and ground leads plus a 30-amp fuse, none of which are included in the box. A remote level control is supplied so bass output can be adjusted from the driver position. Installers must provide their own power wiring, ground connection and fuse holder to complete the installation. The mono design frees up other channels for midrange and high-frequency speakers in a multi-amplifier system.

How it compares

Measured against everything we stock in Car Audio Amplifiers, at today’s prices. Recalculated every night.

Price $193.99
Cheaper than about 57% of the 158 comparable items (median $225.49).

Specifications

Product
Brand nameRockford Fosgate
Product typeAmplifiers

Questions about this item

How do I install the R2-250X1 and what is the step most people miss?

Use 8-gauge power and ground leads with a 30-amp fuse; the step most people miss is connecting the remote turn-on wire or setting the Auto remote turn-on Defeat Switch correctly for their head unit.

What maintenance or replacement will this amplifier need later?

The 30-amp fuse on the power lead is the only user-replaceable part; the Class-D design has no internal fan or serviceable components, so no scheduled maintenance is required.

What limit shows up first during sustained heavy bass?

Thermal protection will engage before the 250-watt RMS at 2-ohm rating can be exceeded continuously; the 12 dB/octave Butterworth crossover and variable infrasonic filter help manage heat by limiting low-frequency content.

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