• FULL RANGE CLASS D AMPLIFIER: Experience efficient, high-quality sound with the APEV-400.4 Full Range Class D Amplifier. Its advanced Class D design delivers clean, powerful audio while minimizing heat generation and maximizing efficiency for your car audio system.
• COMPACT 4-CHANNEL POWER: Designed for versatile system configurations, this amplifier delivers up to 4 x 100W RMS at 2 Ohms, 4 x 60W RMS at 4 Ohms, or 2 x 200W RMS bridged, making it ideal for powering multiple speakers or a pair of high-performance channels.
• BUILT FOR CLEAR, DYNAMIC SOUND: With a 20Hz–20kHz full-range frequency response, THD below 0.2%, and signal-to-noise ratio greater than 80dB, the amplifier reproduces music with excellent clarity, detail, and balanced performance across the entire audio spectrum.
• ADJUSTABLE CROSSOVER CONTROLS: Integrated 90Hz High Pass and Low Pass crossovers allow you to optimize speaker performance by directing the appropriate frequencies to your speakers, helping create a cleaner and more efficient audio system.
• COMPACT DESIGN WITH RELIABLE PROTECTION: Operating from 9V–16V and protected by a 30A ANL fuse, the APEV-400.4 is engineered for dependable performance in a compact chassis measuring just 4.0" × 4.1" × 2.0" (102 × 105 × 50 mm), making installation easy even in tight spaces.
• CONTINUOUS POWER OUTPUT (RMS) @1% THD, 1KHZ 
  Stereo @ 4 Ohms: 4 × 60W 
  Stereo @ 2 Ohms: 4 × 100W 
  Bridged @ 4 Ohms: 2 × 200W
• FREQUENCY RESPONSE: 20Hz–20kHz
• TOTAL HARMONIC DISTORTION (THD): <0.2%
• SIGNAL-TO-NOISE RATIO: ≥80dB
• INPUT SENSITIVITY: 0.2V–2.7V
• HIGH PASS CROSSOVER: 90Hz LOW PASS CROSSOVER: 90Hz
• OPERATING VOLTAGE: 9V–16V 
• FUSE: 30A ANL
• DIMENSIONS (L × W × H): 4.0" × 4.1" × 2.0" (102 × 105 × 50 mm) 

Description:

Upgrade your car audio system with the APEV-400.4 Full Range Class D 4-Channel Amplifier. Engineered to deliver efficient and reliable performance, this compact amplifier produces up to 4 x 100W RMS at 2 Ohms or 2 x 200W RMS bridged, providing the flexibility to power multiple speakers or a bridged setup with ease. Its 20Hz–20kHz full-range response, low distortion, and 90Hz high- and low-pass crossovers ensure clean, dynamic sound reproduction across every genre. Housed in a compact chassis with a 30A ANL fuse and designed for 9V–16V operation, the APEV-400.4 is the perfect solution for upgrading your vehicle's audio performance without sacrificing installation space.

APEV-400.4-English/Spanish Product Manual