Description
Punch 300 Watt Mono Amplifier
The PBR300X1 is a compact mono subwoofer amplifier engineered for tight spaces but serious bass. It uses Boosted Rail Technology (BRT) to deliver clean power efficiently, even at heavy loads. With support for both line‑level and speaker‑level inputs and a variable hi‑level DC offset turn‑on circuit, it’s convenient to install in OEM systems. The small chassis and convection cooling help keep the amp running cool under pressure.
Features
| Feature | Details |
|---|---|
| RMS Power Output | 75 W @ 4 Ω |
| 150 W @ 2 Ω | |
| 300 W @ 1 Ω | |
| Amplifier Design | Class-BR with MOSFET output stage |
| Technology | Boosted Rail Technology (BRT) for high efficiency in a compact chassis |
| Crossover / EQ | Variable low-pass crossover (35–250 Hz, 12 dB/octave) |
| Optional remote bass boost (0–18 dB @ 45 Hz) | |
| Inputs | High-level (speaker) and low-level (RCA) inputs with auto turn-on for speaker-level input |
| Additional Controls | DC offset trim control |
Specifications
| Specification | Details |
|---|---|
| Model | PBR300X1 |
| Channels | Mono (1) |
| RMS Power Output | 75W @ 4Ω; 150W @ 2Ω; 300W @ 1Ω |
| Dynamic Power Output | ~96W @ 4Ω; ~189W @ 2Ω; ~326W @ 1Ω |
| Frequency Response | 20Hz – 250Hz ±3dB |
| Amplifier Class / Topology | Class‑BR / MOSFET output stage |
| Cooling System | Convection with extruded aluminum heatsink |
| Input Sensitivity | Low‑level: 150mV–4V; High‑level: 400mV–11V |
| Crossover Controls | Low‑Pass: 35‑250 Hz, 12 dB/octave Butterwort |
| Remote Bass‑Boost | Optional (0‑18 dB at 45 Hz) |
| Power/Ground Wire Gauge | 10 AWG recommended |
| Fuse Rating | 30 A external fuse recommended |
| Operating Voltage | 9‑16 V DC |
| Dimensions (H × W × D) | 1.53″ × 4.25″ × 6.75″ (~39mm × 108mm × 172mm) |
| Weight | ~1.25 kg / 2.76 lbs |
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