Rockford Fosgate R2-750X1 Prime 750W Mono Amplifier
Class-D mono amp with infrasonic filter, Punch EQ, and RLC
$379.99
Overview
Bridge the gap between compact and high-output monos with the Rockford Fosgate R2-750X1 Prime Series Class-D amplifier: 250 watts RMS at 4 ohms, 500 watts at 2 ohms, and 750 watts at 1 ohm. Punch EQ, a variable infrasonic filter, C.L.E.A.N. LEDs, and an included RLC remote support focused bass installs. Use 4 AWG power wire and a 120 Amp fuse (sold separately).
Product details
Mid-power Prime mono
R2-750X1 sits between the 500-watt and 1200-watt Prime monos for builders who need more than a compact bass amp without jumping to the largest chassis. Continuous ratings are 250 W at 4 ohms, 500 W at 2 ohms, and 750 W at 1 ohm. The Class-D design, cast heat sink, and top-mounted control panel keep the footprint manageable for many trunk and under-seat installs while still delivering the rated continuous power.
Filters and setup aids
Dial the low-pass from 50–250 Hz and the infrasonic filter from 15–40 Hz to protect the woofer from content it cannot use. Punch EQ adds up to +18 dB at 45 Hz when you want more slam. C.L.E.A.N. input and output LEDs, plus the included RLC remote level control, simplify gain and bass volume setting after the wiring is finished.
Inputs and electrical
Low-level RCAs and high-level Molex inputs both feed an RCA pass-thru for daisy-chaining another amplifier. An Auto-Sense bypass switch supports vehicles with retained accessory power. Rockford calls for 4 AWG power wire and a 120 Amp fuse (not included), with 8 AWG speaker wire on the outputs. Convection cooling and rollback protection help the amp stay reliable under continuous bass loads.
Key features
- Mono Class-D amp: 250 W @ 4Ω, 500 W @ 2Ω, 750 W @ 1Ω RMS
- Variable low-pass (50–250 Hz) and infrasonic filter (15–40 Hz)
- On-board Punch EQ with up to +18 dB at 45 Hz
- C.L.E.A.N. setup LEDs for gain matching
- Balanced RCA and high-level inputs with RCA pass-thru
- Auto-Sense bypass for retained accessory power vehicles
- Includes RLC remote level control
- 4 AWG power terminals; recommended fuse 120 A (not included)
- Dimensions: 1.9" x 6.8" x 10.1"
Specifications
| Weight | 6.76 lbs |
|---|---|
| Dimensions | 10.1 × 6.8 × 1.9 in |
| Brand | Rockford Fosgate |
| Model | R2-750X1 |
| SKU | R2750X1 |
| Product type | Amplifier |
| Channels | Mono |
| Circuit class | Class-D |
| Rated power (RMS) | 250 W x 1 @ 4Ω; 500 W x 1 @ 2Ω; 750 W x 1 @ 1Ω |
| Dynamic power (PowerCube) | 300 W x 1 @ 4Ω; 545 W x 1 @ 2Ω; 830 W x 1 @ 1Ω |
| Total rated power | 750 W |
| Bridgeable | No |
| Frequency response | 20 Hz – 250 Hz |
| Low-pass crossover | 50 Hz – 250 Hz @ 12 dB/octave Butterworth |
| Infrasonic filter | 15 Hz – 40 Hz @ 12 dB/octave Butterworth |
| Punch EQ | 0 to +18 dB @ 45 Hz |
| THD+N | <1.0% @ 4Ω, 2Ω, and 1Ω |
| Input sensitivity (low-level) | 150 mV – 4 V |
| Input sensitivity (high-level) | 450 mV – 12 V |
| Signal input | Low-level 2 RCA; high-level 4-pin Molex |
| Signal output | Low-level 2 RCA pass-thru |
| Remote level control | RLC included |
| Power wire gauge | 4 AWG |
| Speaker wire gauge | 8 AWG |
| Recommended fuse | 120 A (not included) |
| Max current draw | 71 A @ 13.8 V sinewave |
| Operating voltage | 9 – 16 VDC |
| Cooling | Convection |
| Dimensions (H x W x D) | 1.9" x 6.8" x 10.1" (4.9 x 17.3 x 25.5 cm) |
| CEA-2006 | Compliant |
Important notes
- Amplifier only. Power kit, signal cables, speaker wire, and the 120 Amp fuse are sold separately.
- Use 4 AWG power/ground cable per Rockford’s recommendation.
- 1-ohm stable mono; this model is not bridgeable.
What's in the box
- Rockford Fosgate R2-750X1 amplifier
- RLC remote level control
