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JAFive 5-Channel Class-D Amplifier The JAFive is a full-range 5-channel Class-D amplifier designed to power an entire vehicle audio system from a single compact chassis. With four full-range channels and a dedicated subwoofer channel, the amplifier provides system-wide control for front speakers, rear speakers, and subwoofer output while maintaining efficient power delivery. Flexible input options and adjustable tuning controls allow the JAFive to integrate with factory or aftermarket head units while giving installers precise control over system performance. System-Wide Power Output 85W x4 + 310W x1 @ 4Ω (1% THD+N) 135W x4 + 495W x1 @ 2Ω (1% THD+N) Up to 1175W maximum dynamic power Class D digital amplifier design Five-channel configuration for full-system installations Advanced System Tuning Built-in crossover and bass controls allow installers to precisely match the amplifier to a wide range of speaker and subwoofer configurations. Adjustable high-pass and low-pass crossovers Crossover range: 50 Hz – 250 Hz Subsonic filter: 30 Hz / 24 dB Variable bass boost at 45 Hz (0 – 6 dB) Frequency response: 20 Hz – 20 kHz Flexible System Integration The amplifier supports both high-level and low-level signal inputs, making it compatible with factory audio systems as well as aftermarket head units. High-level speaker wire inputs Low-level RCA inputs Variable gain adjustment (300 mV – 6 V) 2Ω / 4Ω stable stereo operation Compact Installation Design Despite powering an entire audio system, the JAFive amplifier maintains a compact chassis designed for flexible installation in modern vehicles. Compact amplifier footprint Recommended 4 AWG power and ground wiring Recommended 12 AWG speaker wiring Dual 40A fuses Specifications Amplifier Class D Digital Speaker Outputs 5 Channel CTA-2006-D Certification Certified RMS Power @ 4Ω 85W x4 + 310W x1 RMS Power @ 2Ω 135W x4 + 495W x1 Total Dynamic Power 1175 Watts Speaker Inputs High Level (Speaker Wire), Low Level (RCA) Crossover Adjustable High-Pass / Low-Pass / Full Range (50 Hz – 250 Hz) Subsonic Filter 30 Hz / 24 dB Bass Boost Variable 0 – 6 dB @ 45 Hz Frequency Response 20 Hz – 20 kHz Gain Adjustment Variable 300 mV – 6 V Recommended Power/Ground Wire 4 AWG Recommended Speaker Wire 12 AWG Fuse Rating 40A x 2 Dimensions (H x D x W) 1.99" x 6.53" x 13.07"
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