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Product features
Proven Punch Technology in a Compact, Marine-Tough Package.
Product Overview
The Rockford Fosgate PM300X2 is a 300 Watt, 2-channel Class A/B amplifier designed for marine, motorsport, and powersports environments and versatile enough to handle virtually any moderately sized audio system. Delivering 100W x 2 at 4 ohms, 150W x 2 at 2 ohms, or 300W x 1 bridged at 4 ohms, the PM300X2 is equally at home powering a pair of coaxial speakers on a tinnie, component speakers in a UTV, or a single subwoofer in a ute all from the same compact chassis (60.5 x 250.8 x 197.1 mm).
What makes the PM300X2 stand out as an entry point into the Punch Marine range is its flexibility. Run it as a straight stereo amplifier for a pair of speakers, bridge it to mono for a clean, compact subwoofer channel, or operate it in stereo/mono simultaneously using passive crossovers for a 2.1 setup from a single unit. Rockford Fosgate's Element Ready™ construction conformal-coated PCB, UV-resistant components, and marine-grade stainless steel hardware ensures every install holds up against saltwater, humidity, outback dust, and relentless Australian UV.
Key Specifications
- 300W total power output (CTA-2006 compliant)
- 100W x 2 channels at 4 ohms | 150W x 2 channels at 2 ohms
- 300W x 1 channel at 4 ohms (bridged mono)
- Class A/B circuit topology (Trans•ana)
- 2-channel configuration; bridgeable to mono
- Frequency response: 20 Hz – 20 kHz
- THD+N: Less than 1%
- Input sensitivity: 150mV – 12V (low- and high-level)
- Crossover: 12 dB/octave Butterworth, 50 Hz – 250 Hz (HP/LP/AP)
- On-board Punch EQ2: Bass +0 to +18 dB @ 45 Hz | Treble +0 to +12 dB @ 12 kHz
- RCA pass-through outputs (active signal loop for daisy-chaining amps)
- Optional remote Punch Level Control (PLC2) compatible
- Marine-grade two-part epoxy conformal coating on PCB
- Marine-grade stainless steel hardware
- Element Ready™: Dust, UV, Temperature, Water, Corrosion & Vibration rated
- Recommended fuse: 50A x 1 (not included)
- Max current draw: 45A at 13.8V sinewave
- 2-year manufacturer warranty
Features & Benefits
The Most Versatile Amp in the Punch Marine Range The PM300X2 is purpose-built for flexibility. Speaker pair up front? Done. Bridge it to mono for a 4-ohm sub? Easy. Run it in stereo and mono simultaneously with passive crossovers for a 2.1 system? The PM300X2 handles it one amplifier, multiple configurations, zero compromises.
Marine-Grade Element Ready™ Construction Two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware protect the PM300X2 against the salt, moisture, UV, and vibration that kills inferior gear. It's a genuine marine-grade amplifier not a standard car amp with a cosmetic finish applied.
Class A/B Trans•ana Topology Rockford Fosgate's Trans•ana design simplifies the signal path, allowing the signal to travel at lower voltage through the amp for reduced distortion, improved reliability, and a flat, fatigue-free frequency response from 20 Hz to 20 kHz. Real-world performance consistently exceeds the published <1% THD spec.
C.L.E.A.N. Gain Setting with LED Indicators Calibrated Level Eliminates Audible Noise. The onboard C.L.E.A.N. circuit uses colour-coded LEDs (Blue: <0.5% THD | Violet: 1% THD | Red: 10%+ THD) to guide precise gain matching between your source and amplifier no clipping, no distortion, no damaged speakers from an over-driven install.
High-Level Input with Auto Turn-On Accepts speaker-level signals up to 12V directly from factory (OEM) head units no line output converter required. The Auto Turn-On circuit senses the audio signal and powers the amp automatically. Ideal for Aussie utes, 4WDs, boats, and UTVs running factory head units where aftermarket RCA outputs aren't available.
On-Board Punch EQ2 with Bass & Treble Boost Dial in up to +18 dB of bass boost at 45 Hz and +12 dB of treble presence at 12 kHz directly from the stealth top-mounted control panel. Whether you're filling a boat with open-air sound or tucking a sub under a ute seat, the EQ2 lets you tune for the environment without needing a separate processor.
RCA Pass-Through Outputs Loop the signal downstream to a second amplifier without signal degradation. Pair the PM300X2 on a subwoofer channel and feed a dedicated speaker amp from the same source a clean, cost-effective system expansion path.
Optional PLC2 Remote Level Control The PM300X2 is PLC2-ready. Add the optional Rockford Fosgate PLC2 remote controller (sold separately) for driver-seat subwoofer level adjustment, complete with an onboard input clip indicator to keep tabs on your gain headroom.
MEHSA³ Cast Aluminium Heatsink Maximum Efficiency Heat Sink Application (MEHSA³) construction achieves up to five times better heat transfer than conventional mounting, keeping the PM300X2 cool even when installed in sealed, sun-baked enclosures. Dynamic Thermal Management further distributes heat evenly across the entire heatsink surface.
Muted Turn-On Silently powers up without a pop or thump through your speakers protecting tweeters, mid-range drivers, and subwoofers at every ignition cycle.
Technical Specs
| Specification | Detail |
|---|---|
| SKU | PM300X2 |
| Number of Channels | 2 |
| Total Power | 300W |
| Rated Power – 4 ohm (CTA-2006, <1.0% THD+N) | 100W x 2 |
| Rated Power – 2 ohm (CTA-2006, <1.0% THD+N) | 150W x 2 |
| Rated Power – 4 ohm Bridged (CTA-2006) | 300W x 1 |
| Circuit Topology | Class A/B (Trans•ana) |
| Bridgeable | Yes (mono, 4 ohm minimum) |
| Frequency Response | 20 Hz – 20 kHz |
| THD + Noise | Less than 1% |
| Input Sensitivity | Low-Level: 150mV – 4V / High-Level: 4V – 12V |
| Signal Input | 2 x RCA + High-Level |
| Signal Output | 2 x RCA Pass-Through |
| Punch EQ2 Bass | 0 dB to +18 dB @ 45 Hz |
| Punch EQ2 Treble | 0 dB to +12 dB @ 12 kHz |
| High-Pass/Low-Pass Crossover | 50 Hz – 250 Hz @ 12 dB/octave Butterworth |
| All-Pass | Yes |
| Auto-Sense Turn-On | Yes |
| High-Level Input | Yes (with Auto Turn-On) |
| Remote Level Control | Optional PLC2 (sold separately) |
| Circuit Board Protection | Marine-grade two-part epoxy conformal coating |
| Heatsink | Cast aluminium (MEHSA³ + Dynamic Thermal Management) |
| Hardware | Marine-grade stainless steel |
| Element Ready™ | Dust, UV, Temperature, Water, Corrosion, Vibration |
| CTA-2006 Compliant | Yes |
| CE Compliant | Yes |
| Recommended Fuse | 50A x 1 (not included) |
| Max Current Draw (13.8V Sinewave) | 45A |
| Visual Indicators | Power/Protect LED; C.L.E.A.N. In/Out LED |
| LED Colour Legend | Blue: <0.5% THD / Violet: 1% THD / Red: 10%+ THD |
| Dimensions (H x W x D) | 60.5 x 197.1 x 250.8 mm (2.38 x 7.76 x 9.88 in) |
| Shipping Weight | Confirm with supplier |
| Warranty | 2 Years |
Compatible With
Speakers (Stereo Mode)
- Rockford Fosgate Punch PM series marine coaxial speakers
- Rockford Fosgate PM282H / PM282H-B 8" Element Ready marine speakers
- Rockford Fosgate M2-65B / M2-8 marine coaxial speakers
- Any pair of 2- or 4-ohm full-range coaxial or component speakers
Subwoofer (Bridged Mono Mode)
- Single 4-ohm SVC subwoofer (bridged, 300W)
- Rockford Fosgate Punch P1D4-10, P2D4-10 marine or powersports subwoofers
- Rockford Fosgate M2D4-12 Marine Subwoofer (confirm impedance before bridging)
Combined Stereo + Mono (with Passive Crossovers)
- 2.1 system: front speakers (stereo) + single sub (mono) via passive crossovers (not supplied)
Marine & Boat Audio
- Tinnies, ski boats, pontoons, and centre consoles
- Paired with Rockford Fosgate PM400X4 via RCA pass-through for full front/rear + sub system
- Rockford Fosgate PMX-5CAN Marine Head Unit
Motorsport & Powersports
- Side-by-side UTVs (Can-Am Maverick, Polaris RZR, Yamaha YXZ)
- Motorcycles and touring bikes with aftermarket audio
- Powersports applications requiring compact, vibration-resistant amplification
4WD, Ute & Touring Vehicles
- Toyota LandCruiser (100, 200, 300 Series), HiLux, Prado
- Ford Ranger, Everest, Bronco
- Isuzu D-MAX / MU-X
- Nissan Patrol, Navara
- Mitsubishi Triton, Pajero Sport
- Any vehicle running an OEM (factory) head unit via high-level input
Compatible Accessories
- Rockford Fosgate PLC2 Remote Punch Level Controller (sold separately)
- RFI-1 Amplifier Wiring Installation Kit (recommended for extended warranty)
Frequently Asked Questions
Can the PM300X2 run speakers and a subwoofer at the same time?
Yes. Using passive crossovers (not supplied), the PM300X2 can operate in stereo mode for a pair of speakers and mono mode for a subwoofer simultaneously delivering a complete 2.1 system from a single compact amplifier.
Does the PM300X2 work with a factory (OEM) head unit?
Yes. The high-level input accepts speaker-level signals directly from a factory head unit (up to 12V), with Auto Turn-On that senses the audio signal at ignition. No line output converter is required, making installation straightforward in any stock AU vehicle.
What is the difference between the PM300X2 and the PM500X2?
The PM300X2 delivers 300W total (100W x 2 @ 4 ohms) and is best suited to full-range speakers or a single modest subwoofer. The PM500X2 delivers 500W total (150W x 2 @ 4 ohms / 500W bridged) with a larger output stage optimised for dedicated subwoofer applications. Choose the PM300X2 for flexibility; choose the PM500X2 for maximum bass output.
Is this amplifier genuinely marine-grade or just water-resistant?
The PM300X2 uses Rockford Fosgate's Element Ready™ construction marine-grade two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware rated for dust, UV, temperature, water, corrosion, and vibration exposure. It is built to withstand real marine environments, not just light splash protection.
What warranty applies to the PM300X2 in Australia?
The PM300X2 carries a 2-year manufacturer warranty. Australian warranty terms are administered through the authorised local distributor confirm coverage details at point of purchase, as Rockford Fosgate's printed US warranty applies only to products purchased via US-authorised dealers.
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