Phoenix Gold ZXM 400.4 ISO

OEM integration made easy. Mini in size, maximum performance and compatibility.

The ZXM400.4ISO Plug & Play mini amplifier is the ideal solution for upgrading the OEM audio system without requiring the more advanced ZDA DSP amplifier. This ISO mini amplifier was designed from the ground up for true Plug & Play installation and can be seamlessly connected via our complete ecosystem of Plug & Play wiring harnesses. This allows you to upgrade over 2,000 vehicles without cutting, splicing, or modifying the factory wiring.

Despite its ultra-compact size, the ZXM400.4ISO delivers clean, efficient, and powerful Class D amplification suitable for both OEM and aftermarket systems. It was designed for direct integration and is the ideal choice for users who want to achieve better sound quickly and reliably.

Why choose the ZXM400.4ISO?

• 100% Plug & Play – Designed for direct use with our complete range of Plug & Play wiring harnesses.
• OEM-compatible ISO design – Perfect for factory audio upgrades without coding or complexity.
• Compact and powerful – Mini housing, big power.
• Easy installation – No cutting, no complications, simply connect and enjoy.

Features at a glance

• Class D efficiency and clean output
• Short-circuit, over-temperature, and high/low voltage protection
• Excellent signal-to-noise ratio and FM noise reduction
• LED status indicator
• Surface mounting technology for reliability
• Extremely small footprint for easy installation
• Automatic start at high input level
• Fully adjustable high-pass and low-pass filters

Specifications

• Class D 4-channel mini amplifier
• Power (MAX): 1000 W
• RMS power:
• 100 W x 4 @ 2 Ω
• 60 W x 4 @ 4 Ω
• 220 W x 2 @ 4 Ω bridged
• Frequency response: 20 Hz–25 kHz
• Signal-to-noise ratio: > 90 dB
• THD: < 1%
• Low-pass filter: 40 Hz–400 Hz (12 dB/octave)
• High-pass filter: 40 Hz–400 Hz (12 dB/octave)
• Crosstalk: -45 dB
• Input sensitivity: 0.45 V – 20 V
• Automatic switching: Yes
• Input mode: 2-channel / 4-channel
• OIS – OEM impedance simulation: Yes
• Operating voltage: 7 V–16.5 V
• Quiescent current: 0.70 A
• Maximum current draw: 34 A
• Overall efficiency (4 Ω): 90 %
• Power connection: 20-pin Molex
• Speaker connection: 1 mm²
• Dimensions (with feet): 165 × 83.1 × 34.8 mm
• Dimensions (without feet): 149 × 83.1 × 34.8 mm