Jensen - JAFOUR 4 Channel MOSFET Amplifier 125 Watts - Black/Gray
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About this product
JAFour 4-Channel Class-D Amplifier Clean Power, Versatile Control, Compact Form The JAFour is a powerhouse in a sleek chassis, delivering clean Class-D efficiency and 4-channel flexibility. Whether you’re powering a full system or bridging channels for higher output, this amplifier provides precise control and strong, reliable performance. It supports both high-level (speaker wire) and low-level (RCA) inputs, making it compatible with virtually any audio setup. With selectable high-pass, low-pass, and full-range crossovers plus variable bass boost, you can customize your system’s sound to match your music—or your mood. Why it’s robust Real power you can use: 125W x4 @ 4Ω, 215W x4 @ 2Ω, or 445W x2 bridged @ 4Ω (1% THD+N). Strong dynamic headroom: Up to 950W max dynamic power (10% THD+N). Precision tuning: Selectable HPF/LPF with wide 50–250 Hz range, plus variable bass boost @ 45 Hz (0–6 dB). Clean signal path: 82 dBA S/N (1 W ref) and <0.12% THD+N at 1 W for smooth, low-noise performance. Flexible integration: Works with high-level and RCA inputs; 2/4-ohm stereo stable; bridgeable for powerful sub setups. Installer friendly: Variable gain (300 mV–6 V), 8 AWG power/ground and 12 AWG speaker wire recommendations, 30A fuse, and a compact 1.99” x 6.53” x 9.13” (H x D x W) footprint. Specifications: Speaker Outputs: 4 Class: D Digital CTA-2006-D Certification: Certified Speaker Inputs: High level (Speaker Wire), Low Level (RCA) 2 Ohm Stable Stereo Operation: Yes Total Dynamic Power: 950 Watts Crossover: Adjustable high-pass/low-pass/full range 50 Hz – 250 Hz Frequency Response: 20 Hz ~ 20 kHz Gain Adjustment: Variable 300mV ~ 6V Signal to Noise Ratio: 82 dBA (reference: 1 Watt RMS) Adjustable Bass Boost: 45 Hz Recommended Power/Ground Wire: 8 AWG Recommended Speaker Wire: 12 AWG Fuse Size and Type: 30A x 2
Features
Key Feature
High Output Power: 125W x4 @ 4Ω, 215W x4 @ 2Ω, or 445W x2 bridged @ 4Ω (1% THD+N) for flexible system configurations
Key Feature
Dynamic Performance: Up to 950W max dynamic power (10% THD+N) ensures strong headroom and impactful sound
Key Feature
Advanced Crossover Control: Selectable HPF/LPF/full-range with adjustable 50–250 Hz range for precise tuning
Key Feature
Clean Audio Signal: 82 dBA S/N ratio and <0.12% THD+N for low-noise, distortion-free playback
Key Feature
Flexible Connectivity: Compatible with high-level (speaker wire) and RCA inputs; 2Ω stereo stable and bridgeable design
Specifications
- Amplifier ClassDNumber Of Channels4Bass BoostVariable
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JAFour 4-Channel Class-D Amplifier Clean Power, Versatile Control, Compact Form The JAFour is a powerhouse in a sleek chassis, delivering clean Class-D efficiency and 4-channel flexibility. Whether you’re powering a full system or bridging channels for higher output, this amplifier provides precise control and strong, reliable performance. It supports both high-level (speaker wire) and low-level (RCA) inputs, making it compatible with virtually any audio setup. With selectable high-pass, low-pass, and full-range crossovers plus variable bass boost, you can customize your system’s sound to match your music—or your mood. Why it’s robust Real power you can use: 125W x4 @ 4Ω, 215W x4 @ 2Ω, or 445W x2 bridged @ 4Ω (1% THD+N). Strong dynamic headroom: Up to 950W max dynamic power (10% THD+N). Precision tuning: Selectable HPF/LPF with wide 50–250 Hz range, plus variable bass boost @ 45 Hz (0–6 dB). Clean signal path: 82 dBA S/N (1 W ref) and <0.12% THD+N at 1 W for smooth, low-noise performance. Flexible integration: Works with high-level and RCA inputs; 2/4-ohm stereo stable; bridgeable for powerful sub setups. Installer friendly: Variable gain (300 mV–6 V), 8 AWG power/ground and 12 AWG speaker wire recommendations, 30A fuse, and a compact 1.99” x 6.53” x 9.13” (H x D x W) footprint. Specifications: Speaker Outputs: 4 Class: D Digital CTA-2006-D Certification: Certified Speaker Inputs: High level (Speaker Wire), Low Level (RCA) 2 Ohm Stable Stereo Operation: Yes Total Dynamic Power: 950 Watts Crossover: Adjustable high-pass/low-pass/full range 50 Hz – 250 Hz Frequency Response: 20 Hz ~ 20 kHz Gain Adjustment: Variable 300mV ~ 6V Signal to Noise Ratio: 82 dBA (reference: 1 Watt RMS) Adjustable Bass Boost: 45 Hz Recommended Power/Ground Wire: 8 AWG Recommended Speaker Wire: 12 AWG Fuse Size and Type: 30A x 2
Alpine Status delivers a superior level of audio performance that will take your music to a whole new level. FEATURES - • Hi-Res Audio Playback (192kHz/24Bit) • Mono-Channel Amplifier • High-Efficiency Digital Circuit Design • Alpine’s Dual Negative Feedback Control Circuit • High Bandwidth Amplifier • Alpine’s Premium Class D Circuit Design • Copper-plated chassis • Black circuit board • One-sided terminal layout • Top panel sound controls • Quick connect power and speaker terminals • Optional Remote bass knob compatible (requires RUX-KNOB.2 or RUX-H01, sold separately) What's in the Box: • HDA-M80 Mono Amplifier • Owner’s manual • “Birth sheet” that certifies by measurement the actual power of the amplifier in the box • 4 Screws for amplifier mounting to vehicle • 2pcs. Mount bracket w/ 4 Screws for attachment to amplifier • 3pcs. Allen wrench for amplifier connection & installation – Sizes: 2mm/2.5mm/4mm • 1pc. Quick connector block for Power/Ground/Remote wires • 1pc. Quick connector block for Speaker wires TECH SPECS - • Dimensions: 11.4375” x 7.5” x 2.125” • Power Rating: (14.4V, ≤1.0% THD+N) • 800W x 1 @ 2Ω • 500W x 1 @ 4Ω • THD+N: 0.02% (10W into 4ohm) • S/N Ratio: 83dB (1W into 4ohm) • Frequency response: 8-400Hz (-3dB) • Damping factor: 1500 • Selectable input level – HI/LO • Variable High pass / Low pass crossover • Variable Subsonic filter • Bass EQ (0 to +12dB, Variable) • Auto-turn on with remote sensing
Take your Stinger car audio to the next level with the MT Series by Stinger Audio: sleek, compact multi-channel amplifiers designed to integrate into any vehicle sound system. Harnessing the power of Class D circuitry, these amplifiers efficiently drive your speakers, producing clarity and vibrancy in sound reproduction. Utilizing advanced MOSFET technology alongside top-tier capacitors, transformers, and cutting-edge inductors, our amplifiers deliver a sonic experience that transcends expectations.
Power Reference amplifiers offer a perfect blend of space-saving design and robust performance. They have been redesigned with a smaller footprint compared to their predecessors while maintaining the impressive power ratings you expect from Power Reference. These amplifiers feature a sleek LED-accented acrylic top panel that conceals conveniently located top-mounted controls, allowing for easy adjustments even in tight spaces. Undermount LED accent lighting adds a personalized touch and a high end custom appearance. These amplifiers deliver precise sound control and unwavering reliability. The objective behind Power Reference was to preserve their exceptional performance while enhancing the amplifier’s versatility by reducing the overall footprint by up to 43% on specific models making this the most versatile and advanced Power Reference amplifier to date. Features - • Compact space saving design • Blue LED top Cover • Blue LED ground lighting • Extruded aluminum heatsink • 12 dB/octave butterworth crossovers • Variable crossovers • Variable EQ boost 0-12dB • Selectable amp turn on • Top mount controls hidden under panel Specifications - • RMS Power 4Ω: 75W x 4 • RMS Power 2Ω: 125W x 4 • Bridged Mono @ 4Ω: 250 x 2 • THD%: <1% • Frequency Response: 10Hz-27kHz • Dimensions (in): 8.6 x 5.7 x 2.16 • Recommended Amp Kit: 8GKIT
Specs
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