Phoenix Gold ZXM500.4i Class-D 4-Channel Mini Amplifier, 1000W Max, 165x83.1x34.8mm, 7V-16.5V

COMPACT POWERHOUSE: Class-D 4-channel mini amplifier delivers 1000W maximum power with impressive efficiency of 90%, measuring just 149 x 83.1 x 34.8mm for easy installation in tight spaces. VERSATILE POWER OPTIONS: RMS power ratings of 125W x 4 at 2 Ohm, 80W x 4 at 4 Ohm, or 250W x 2 at 4 Ohm bridged configuration to suit various speaker setups and audio requirements. FLEXIBLE INPUT SYSTEM: Features adjustable input sensitivity from 0.45V to 20V with high-level input auto turn-on capability, plus selectable 2CH/4CH input modes for seamless OEM integration. ADVANCED FILTERING: Fully adjustable high-pass and low-pass filters ranging from 40Hz to 400Hz with 12dB/Oct slope, allowing precise sound tuning and optimal frequency control. COMPREHENSIVE PROTECTION: Built-in short circuit, thermal, and high/low voltage protection with LED status indicator, plus OEM impedance simulation for safe and reliable operation.