XL-4165M是一款D类四声道功放，电路板采用保形涂层，涂有一层透明材料，可保护部件免受潮湿，灰尘和极端温度的影响，能够承受恶劣的潮湿环境。运用最新的D类设计，凭借小身材可以在户外，如山地车，游艇等上大放异彩，为消费者提供无与伦比的聆听享受。
640 Watt High Efficiency Full-Range Class D Design
2-OHM Stable Stereo Amplifier
International Rectifier® Chip Set
Ultra Low Current Draw
Double Sided Copper Plated PCB
Conformal Coated PC Board
PWM MOSFET Power Supply
Digital Sound Optimization Circuitry
High Damping Control Circuit
High Current Voltage Ripple Rejection Circuitry
3.5mm AUX Input
Remote Soft Delay Turn On/Off Circuit
Variable Low/High Pass Electronic Crossover
Variable 12dB Bass Boost EQ
Variable Gain Control
Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output.
Selectable Subwoofer EQ: 0-18d B Gain @ 45Hz, Rear Ch.
Variable Subsonic Freq: N/A
Inputs: RCA (speaker level compatible)/3.5mm Mini Jack Input
Equalization Boost/Cut: 0 - 18 dB
Subwoofer Frequency Range: 10 Hz - 400Hz
Power Supply: Unregulated PWM
Height: 1.6"
Width: 4.5"
Depth: 9.6"
4-ohm Mono Power: 320 watts x 2
4-ohm Power: 80 watts x 4
1-ohm Mono Power: N/A
2-ohm Power: 160 watts x 4
Subwoofer EQ Frequency: 45 Hz
Low-Pass Crossover Freq: 40 Hz - 400 Hz
High-Pass Crossover Freq: 40 Hz - 400 Hz
Peak Power: 1280 watts
Crossover Slope: 12 dB
Dimensions (in Inches): 9.6" x 4.5" x 1.6"
Input Sensitivity: 0.25 V - 10.0 V
S/N Ratio: >85 dB
Total Harmonic Distortion: 0.04% at Rated Power
Strapped Output Power @ 2ohms: N/A
Output Power (14.4 V) @ 4 ohm: 80 watts x 4
Output Power (14.4 V) @ 2 ohm: 160 watts x 4
Output Power (14.4 V) @ 1 ohm: N/A
Channels (mono): 4
Frequency Response: 10 Hz - 40 kHz