XMA-4250IR是一款D类四声道功放，具有紧凑的外形设计方便在狭小的车空间内进行安装，同时确保着出色的大功率输出。经过派贝斯工程师多年的研究，采用最新的IR®技术（IR®是PWM电路设计的领导者），可以产生更稳定的功率输出，最小的RF干扰和改善的音质。围绕消费者全方面的技术研究和设计，极大的提升了车主们的聆听享受。
1,000 Watt High Efficiency Full-Range Class D Design
2-OHM Stable Four Channel Amplifier
Ultra Low Current Draw
Double Sided Copper Plated PCB
PWM MOSFET Power Supply
Digital Sound Optimization Circuitry
High Damping Control Circuit
Variable Subsonic Filter
High Current Voltage Ripple Rejection Circuitry
Balanced RCA Inputs
Auto Turn On/Off
Remote Soft Delay Turn On/Off Circuit
40 Click Variable Detente High/Low Pass Electronic Crossover
Switchable 0/12/18 dB Bass Boost @ 45 Hz
Variable Gain Control
Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output
Variable Subsonic Freq: N/A
Inputs: 4 RCA (speaker level compatible)
Subwoofer Frequency Range: 10 Hz - 250 Hz
Power Supply: Unregulated PWM
Height: 2.0"
Width: 7.1"
Depth: 11.2"
Switchable Subwoofer EQ: 0 / +12 / +18dB @ 45 Hz
4-ohm Mono Power: 500 watts x 2
4-ohm Power: 125 watts x 4
1-ohm Mono Power: N/A
2-ohm Power: 250 watts x 4
Subwoofer EQ Frequency: 45 Hz
Low-Pass Crossover Freq: 25 Hz - 250 Hz
High-Pass Crossover Freq: 50 Hz - 350 Hz
Peak Power: 2000 watts
Crossover Slope: 12 dB
Dimensions (in Inches): 11.2" x 7.1" x 2.0"
Input Sensitivity: 0.25 V - 10.0 V
S/N Ratio: >90 dB
Total Harmonic Distortion: 0.04% at Rated Power
Strapped Output Power @ 2ohms: N/A
Output Power (14.4 V) @ 4 ohm: 125 watts x 4
Output Power (14.4 V) @ 2 ohm: 250 watts x 4
Output Power (14.4 V) @ 1 ohm: N/A
Channels (mono): 4
Frequency Response: 10 Hz - 40 kHz