Phoenix Gold ZXM500.1i Compact Mono Class D Amplifier – 500 W RMS
Add dedicated subwoofer power where installation space is limited. The Phoenix Gold ZXM500.1i is a compact Class D mono amplifier delivering 230 W RMS at 4 ohms, 360 W RMS at 2 ohms or 500 W RMS at 1 ohm.
Designed for factory-system integration
The updated “i” model adds selectable OEM impedance simulation, quick power connectors and a high-level input accepting signals up to 20 V. A turn-on selector supports either high-level signal sensing or a remote trigger, giving the installer flexibility when retaining a suitable factory radio.
Bass control included
Adjustable low-pass and subsonic filters help match the amplifier to your subwoofer and enclosure. The variable bass boost adjusts the response at 45 Hz, while the included remote gain controller lets you adjust the subwoofer level from the cabin.
Specifications
| Amplifier type | Single-channel Class D |
|---|---|
| RMS power at 4 ohms | 230 W × 1 |
| RMS power at 2 ohms | 360 W × 1 |
| RMS power at 1 ohm | 500 W × 1 |
| Frequency response | 10–280 Hz |
| Low-pass filter | 50–250 Hz, 12 dB/octave |
| Subsonic filter | 10–50 Hz, 12 dB/octave |
| Bass boost | 0 to +18 dB at 45 Hz |
| Input sensitivity | 0.45–20 V |
| OEM impedance simulation | Selectable |
| Turn-on options | High-level auto turn-on or remote trigger |
| Operating voltage | 7–16.5 V |
| Dimensions including mounting feet | 165 × 83.1 × 34.8 mm |
| Dimensions excluding mounting feet | 149 × 83.1 × 34.8 mm |
| Remote gain controller | Included |
Professional installation at Base Systems
Contact Base Systems in Preston for advice on subwoofer matching, factory-radio integration and professional fitting. Vehicle compatibility, mounting space and wiring requirements should be checked before installation.