Fosi Audio M04 Subwoofer Amplifier for Passive Speakers
Mono amplifier for driving passive subwoofers or speakers with a built-in low pass filter and sub frequency control. Provides 100 watts at 2 ohms. One user notes strong room resonance and easy installation
Highlights
- built-in subwoofer filter
- sub frequency control
- class D efficiency
Pros
- mono amplifier for subwoofers
- built-in low pass filter
- sub frequency control
- compact and robust design
- efficient Class D technology
Cons
- limited to mono operation
- performance noted at 2 ohms may vary by setup
- some users mention room resonance in certain configurations
Best For
Features
- Mono amplifier for driving passive subwoofers or speakers using TI TPA3116 and NE5532 op-amp
- Delivers 100 watts output at 2 ohms for subwoofers or speakers
- Subwoofer mode with built‑in low pass filter and sub frequency control
- Compact, robust Class D design stays cool under load
- Includes a dedicated subwoofer bass amplifier option and full‑frequency mono mode
