Phoenix Gold ZXM400.4ISO – Plug & Play ISO Mini 4 Channel Amplifier

OEM Integration Made Simple. Mini in size, Maximum in Power and Compatibility.

The ZXM400.4ISO Plug & Play mini amp is the perfect solution for upgrading OEM audio without needing the more advanced ZDA DSP amplifier. Designed from the ground up for true plug & play installation, this ISO mini amp connects seamlessly via our complete ecosystem of plug & play harnesses, allowing you to upgrade over 2,000 vehicles without cutting, splicing, or modifying 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. Engineered for direct integration, it’s the ideal choice for drivers who want better sound quickly and reliably.

Why Choose the ZXM400.4ISO?

• 100% Plug & Play – Designed to work directly with our complete plug & play harness range.
• OEM-Ready ISO Design – Perfect for factory audio upgrades with no coding or complexity.
• Compact & Powerful – Mini chassis, big performance.
• Simple Installation – No cutting, no complications, connect and enjoy.

Features at a Glance

• Class-D efficiency and clean output
• Short circuit / thermal/high-low voltage protection
• Excellent signal-to-noise ratio & FM noise rejection
• LED status indicator
• Surface-mount technology for reliability
• Ultra-small footprint for easy mounting
• Auto-start with high-level input
• Fully adjustable high-pass & low-pass filters

Specifications

• Class-D 4-Channel Mini Amplifier
• Power (MAX): 1000W
• RMS Power:
• 125W x 4 @ 2Ω
• 60W x 4 @ 4Ω
• 250W x 2 @ 4Ω bridged
• Frequency Response: 20Hz–20kHz
• Signal to Noise Ratio: > 90dB
• 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 Auto Turn-On: Yes
• Input Mode: 2CH / 4CH
• OIS – OEM Impedance Simulation: Yes
• Operating Voltage: 7V–16.5V
• Idle Current: 0.70A
• Max Current Draw: 48A
• Total Efficiency (4Ω): 90%
• Power Terminal: 10mm²
• Speaker Terminal: 1mm²
• Dimensions (w/ Feet): 165 × 83.1 × 34.8 mm
• Dimensions (w/o Feet): 149 × 83.1 × 34.8 mm