Description
Rockford Fosgate PMX-3
The Rockford Fosgate PMX-3 is a compact, high-performance 3-channel car amplifier designed to power multiple speakers and a subwoofer simultaneously. With hybrid Class-AB/D technology, it delivers efficient, clean, and distortion-free audio, providing a balanced sound profile across highs, mids, and lows. The PMX-3 features adjustable high-pass and low-pass crossovers, as well as high- and low-level inputs, ensuring compatibility with both factory and aftermarket audio systems. Its durable, compact design allows for flexible installation in most vehicles, while built-in protection safeguards the amplifier and connected components. Perfect for enthusiasts looking to upgrade factory systems or build custom setups, the PMX-3 delivers premium sound quality with reliable performance.
Features
| Feature | Description |
|---|---|
| Amplifier Type | 3-channel hybrid Class-AB/D |
| Application | Full-range audio plus subwoofer |
| Performance | Powers multiple speakers and a subwoofer simultaneously |
| Crossovers | Adjustable high-pass and low-pass for precise tuning |
| Inputs | High- and low-level inputs for versatile compatibility |
| Design | Compact, durable for easy installation |
| Protection | Built-in against short circuits and overcurrent |
Specifications
| Specification | Description |
|---|---|
| Brand | Rockford Fosgate |
| Model | PMX-3 |
| Type | 3-Channel Car Amplifier |
| Amplifier Class | Hybrid Class-AB/D |
| Power Output (RMS) | 75 W × 2 @ 4Ω, 150 W × 2 @ 2Ω, 300 W × 1 bridged @ 4Ω, 200 W × 1 @ 2Ω (sub) |
| Frequency Response | 20 Hz – 20 kHz |
| Signal-to-Noise Ratio | >90 dBA |
| Crossover | Adjustable high-pass & low-pass |
| Inputs | High-level (speaker) & low-level (RCA) |
| Outputs | RCA pass-thru |
| Construction | Durable chassis |
| Protection | Short circuit & overcurrent |
| Dimensions | 10.5″ × 2.5″ × 9″ |

































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