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 is a new generation Class-D 1-channel active amplifier module with a robust cast aluminum housing and efficient cooling fins. Its smart, elongated housing dimensions allow for convenient installation even in specific subwoofer enclosure designs. The integrated 3-stage power limiter enables output power adjustment to match the subwoofer being used.
Key Features
- 3-stage power adjustment (via jumper): up to 1 × 540 W RMS @ 4 ?.
- Stable, sealed cast aluminum housing with cooling fins.
- Low 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 turn-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.
- Smart, elongated dimensions for convenient installation 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 (mono block) |
|---|---|
| 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 Turn-on | SIG / DC |
| Remote Control | Yes (wired level controller) |
| Cutout (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 connection to original car audio systems are needed.
FAQ
Can the AM 500 be connected to OEM head units without line outputs?
Yes. The module has High-Level inputs with adjustable voltage and impedance, allowing for easy integration into most OEM systems.
Is automatic turn-on supported?
Yes, SIG/DC detection works and is compatible with start-stop functionality.
What are the maximum power outputs?
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).
