Phoenix Gold ZXM500.4i 4 Channel Mini Amplifier

The ZXM500.4i builds on the success of the ZXM500.4, offering upgraded performance, simplified installation, and expanded compatibility all within the same ultra-compact chassis. Engineered with precision Class-D technology, it delivers clean, efficient, and powerful sound that suits any environment.

What’s New in the ZXM500.4i
Selectable Load Resistors – Fine-tune for optimal power and system matching.
Quick Connectors – Fast, secure, and tool-free installation for power and signal terminals.
20V High-Level Input – Expanded input range for seamless OEM integration.
Auto Start / Remote Trigger Switch – Choose between automatic or manual activation.
ZXM500.4i Key Features
Massive Power & Performance
Full Class-D technology offers efficiency & performance
Short circuit/thermal and high/low voltage protection
Excellent signal-to-noise ratio and FM noise rejection
Built-in protection LED light status indicator
Surface mount component technology
Ultra small size for easy installation
Autostart on high-level input
Full adjustable HP & LP filter

ZXM500.4i Specifications
Class-D 4-Channel Mini Amplifier
Power (MAX) 1000W
Power Ratings (RMS)
125W x 4 @ 2Ohm
80W x 4 @ 4Ohm
250W x 2 @ 4Ohm bridged
Frequency Response: 20Hz – 20kHz
Signal to Noise Ratio: > 90dB
Total Harmonic Distortion (THD): < 1%
Low Pass Filter: 40Hz – 400Hz (12dB/Oct)
High Pass Filter: 40Hz – 400Hz (12dB/Oct)
Crosstalk:-45dB
Input Sensitivity:0.45V – 20V
High-Level Input Auto Turn-On
Input Mode: 2CH / 4CH
OIS – OEM Impedance Simulation:Yes
Operating Voltage:7V – 16.5V
Idle Current:0.70A
Current Draw (Max):48A
Total Efficiency (4Ω):90%
Power Terminal:10mm²
Speaker Terminal:1mm²
Dimensions (LxWxH) (Excluding Feet):149 x 83.1 x 34.8mm
Dimensions (LxWxH) (Including Feet):165 x 83.1 x 34.8mm
Dimensions (LxWxH) 165 x 83.1 x 34.8mm