Rockford Fosgate T500X1br Power 500W Mono Amplifier
Ultra-compact Class-BR mono amp stable to 1 ohm
$299.99$329.99 (-9%)
Overview
Park a half-kilowatt mono under a seat with the Rockford Fosgate T500X1br Power Series Class-BR amplifier. Continuous power is 175 watts RMS at 4 ohms, 300 watts at 2 ohms, and 500 watts at 1 ohm. Clip-detection LEDs, high-level auto turn-on, and PLC2 remote readiness suit compact subwoofer installs. Plan on 8 AWG power cable and a 60 Amp fuse (sold separately).
Product details
500 watts of Boosted Rail mono power
T500X1br uses patented Class-BR Boosted Rail circuitry to deliver 175 W x 1 at 4 ohms, 300 W x 1 at 2 ohms, and 500 W x 1 at 1 ohm in a chassis only 1.6 x 4.3 x 8.3 inches. Energy stored on the rails is released as demand rises, so the amp can hit that 500-watt continuous rating without a large traditional heat sink footprint.

Bass filtering and remote control
A low-pass crossover sweeps 50–250 Hz at 12 dB/octave Butterworth. Punch bass adds 0 to +18 dB at 45 Hz. An optional PLC2 remote provides Punch Level Control from the dash and is sold separately. Frequency response is 20 Hz–220 Hz.

Install details
High/low-level input arrives on a 4-pin harness with 150 mV–12 V sensitivity and high-level auto turn-on for factory radios. Power uses an 8 AWG detachable compression terminal; speaker outputs accept up to 10 AWG. Dual fans cool the extruded aluminum chassis. Plan on a 60 Amp fuse (not included), about 30 A average music current draw, and a suggested 75 A alternator class supply.
Key features
- Class-BR mono: 175 W @ 4Ω, 300 W @ 2Ω, 500 W @ 1Ω
- Low-pass crossover 50–250 Hz at 12 dB/octave
- Punch bass 0 to +18 dB @ 45 Hz; optional PLC2 remote ready
- Input and output clip LEDs for clean gain setting
- High/low-level 4-pin harness input with high-level auto turn-on
- 8 AWG power block; speaker terminals up to 10 AWG
- Recommended fuse 60 A (not included); dual-fan cooled
- Dimensions: 1.6" x 4.3" x 8.3"
Specifications
| Weight | 3.1 lbs |
|---|---|
| Dimensions | 8.3 × 4.3 × 1.6 in |
| Brand | Rockford Fosgate |
| Model | T500X1br |
| SKU | T500X1BR |
| Product type | Amplifier |
| Channels | Mono |
| Circuit class | Class-BR |
| Rated power (RMS) | 175 W x 1 @ 4Ω; 300 W x 1 @ 2Ω; 500 W x 1 @ 1Ω |
| Dynamic power (PowerCube) | 201 W x 1 @ 4Ω; 342 W x 1 @ 2Ω; 540 W x 1 @ 1Ω |
| Total rated power | 500 W |
| Bridgeable | No |
| Frequency response | 20 Hz – 220 Hz +/-1 dB |
| Input sensitivity | 150 mV – 12 V |
| Efficiency (average) | >75% |
| THD+N | <1.0% @ 4Ω / 2Ω; <1.0% @ 1Ω above 35 Hz |
| Signal input | High/low-level 4-pin harness |
| Tone controls | Bass 0 to +18 dB @ 45 Hz |
| Crossover | Low-pass 50–250 Hz @ 12 dB/octave Butterworth |
| Remote | Optional PLC2 Punch Level Control |
| Visual indicators | Power (blue); protect (red); input clip (red); output clip (blue/violet/red) |
| Power wire gauge | 8 AWG |
| Power input connector | Detachable compression terminal |
| Speaker wire gauge | 10 AWG |
| Speaker output connector | Detachable compression terminal |
| Cooling | Dual fan |
| Recommended fuse | 60 A (not included) |
| Average current draw | 30 A |
| Max current draw | 60 A |
| Suggested alternator | 75 A |
| Operating voltage | 9 – 16 VDC |
| Dimensions (H x W x D) | 1.6" x 4.3" x 8.3" |
| Shipping weight | 3.1 lb (1.4 kg) |
Important notes
- Amplifier only. Power kit, signal cables, speaker wire, and the 60 Amp fuse are sold separately.
- Optional PLC2 Punch Level Control remote is sold separately.
- Use 8 AWG power/ground cable matched to the amp’s current draw.
What's in the box
- Rockford Fosgate T500X1br amplifier







