ETON AM 500 — 1-channel Class-D active subwoofer amplifier module
Compact, powerful, and easy to integrate into subwoofer enclosures for "DIY" projects.
AM 500 — this is a new generation Class-D 1-channel active amplifier module with a sealed cast aluminum housing and efficient cooling fins. The intelligent, elongated housing dimensions allow for convenient mounting even in specific subwoofer enclosure designs. The integrated 3-stage power limiter allows for adjusting the output power according to the subwoofer being used.
Key Benefits
- 3-stage power adjustment (via jumper): up to 1 × 540 W RMS @ 4 ?.
- Stable, sealed cast aluminum housing with cooling fins.
- Low-level and high-level inputs: RCA and High-Level with adjustable input voltage (15 V / 40 V) and impedance (10 / 150 / 600 ?) — convenient for connecting to OEM systems.
- Automatic power-on (SIG/DC detection), compatible with "start-stop" vehicles.
- Active filters: switchable subsonic 25 Hz (12 dB/oct.), adjustable LPF 40–125 Hz (12 dB/oct.).
- Bass Boost up to +12 dB, GAIN sensitivity adjustment.
- Phase shift 0° / 180°, wired remote level controller included.
- Intelligent, elongated dimensions for convenient mounting into the enclosure wall.
Power Stages
- Stage 1: 1 × 540 W RMS @ 4 ? (without limiter; @2 ? this stage is not supported)
- Stage 2: 1 × 250 W RMS @ 4 ?; 1 × 485 W RMS @ 2 ?
- Stage 3: 1 × 165 W RMS @ 4 ?; 1 × 325 W RMS @ 2 ?
Technical Specifications
| Number of channels | 1 (monoblock) |
|---|---|
| Technology | Class-D |
| Inputs | Low-Level (RCA), High-Level (15 V / 40 V; 10 / 150 / 600 ?) |
| Filters | Subsonic 25 Hz (12 dB/oct., switchable); LPF 40–125 Hz (12 dB/oct.) |
| Bass Boost | 0…+12 dB |
| Phase | 0° / 180° |
| Auto power-on | SIG / DC |
| Remote controller | Yes (wired level controller) |
| Cut-out (mounting) dimensions (W × H) | 188 × 64 mm |
| External dimensions (W × H × D) | 206 × 85 × 98 mm |
| Product code | ET-AM500 |
Who is it for?
An ideal choice for "DIY" subwoofer enclosure projects when high power, reliable cooling, and flexible connectivity to the original car audio system are required.
FAQ
Can the AM 500 be connected to OEM head units without line outputs?
Yes. The module features High-Level inputs with adjustable voltage and impedance, making it easy to integrate into most OEM systems.
Is automatic power-on supported?
Yes, it features SIG/DC detection, compatible with the "start-stop" function.
What are the maximum power ratings?
Up to 1 × 540 W RMS @ 4 ? (stage 1). In other stages: up to 485 W @ 2 ? / 250 W @ 4 ? (stage 2) and 325 W @ 2 ? / 165 W @ 4 ? (stage 3).



