Jensen - JAONE 1 Channel MOSFET Amplifier 500 Watts RMS x 1 @ 4 Ohms, 985 Watts X 1 @ 2 Ohms - Black/Gray
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About this product
Built for clean, reliable bass amplification, the JAOne brings efficient Class-D performance in a compact mono-block layout. Whether you’re pushing a single subwoofer or looking for tight, distortion-free low end, this amp delivers. It supports both high-level (speaker wire) and low-level (RCA) inputs for easy integration with a variety of systems. With a selectable low-pass filter, variable bass boost, and bridgeable power, the JAOne gives you the flexibility to dial in serious low-frequency impact without taking up unnecessary space. Why it’s robust Real power you can use: 300W RMS @ 4Ω, 500W RMS @ 2Ω, or 1000W RMS @ 1Ω (1% THD+N). Strong dynamic headroom: Up to 1300W max dynamic power (10% THD+N). Precision tuning: Selectable low-pass filter (50–150 Hz), plus variable bass boost @ 45 Hz (0–6 dB). Clean signal path: 90 dBA S/N (1 W ref) and <0.12% THD+N at 1 W for clean, efficient output. Flexible integration: Works with high-level and RCA inputs; 1Ω stable for subwoofer applications. Installer friendly: Variable gain (200 mV–6 V), 8 AWG power/ground and 12 AWG speaker wire recommendations, 30A x 3 fuses, and a compact 2.01” x 5.67” x 8.25” (H x D x W) footprint. Peak Power This amp can reach a max dynamic power of 1525 Watts for a powerful listening experience! Compact Design This amp’s compact design makes for easy, non-intrusive, and convenient installation! Efficient Power Output The JAOne Amp has a class D design for improved longevity and high efficiency power output. Product Specs: Speaker Outputs: Mono Class: D Digital CTA-2006-D Certification: Certified Speaker Inputs: High level (Speaker Wire), Low Level (RCA) Total Dynamic Power: 1000 Watts Crossover: Adjustable low-pass crossover (50 Hz – 150 Hz) Frequency Response: 20 Hz – 150 Hz Gain Adjustment: Variable 200 mV ~ 6 V Signal to Noise Ratio: 90 dBA Recommended Power/Ground Wire: 8 AWG Recommended Speaker Wire: 12 AWG Dimensions: 2" x 5.63" x 8.24" (H x D x W) Fuse Size and Type: 20A x 3
Key Feature
Class D Monoblock Subwoofer Amplifier delivering 300W RMS @ 4Ω, 500W RMS @ 2Ω, and 1000W RMS @ 1Ω (1% THD+N)
Key Feature
Up to 1525W Peak Power (10% THD+N) for strong low-frequency output
Key Feature
Selectable Low-Pass Crossover (50–150 Hz) with variable bass boost at 45 Hz (0–6 dB) for subwoofer tuning
Key Feature
High-Level (Speaker Wire) and Low-Level (RCA) Inputs for flexible system integration
Key Feature
Clean Signal Performance with 90 dBA signal-to-noise ratio and <0.12% THD+N at 1W
- Amplifier ClassDNumber Of Channels1Bass BoostVariable
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Built for clean, reliable bass amplification, the JAOne brings efficient Class-D performance in a compact mono-block layout. Whether you’re pushing a single subwoofer or looking for tight, distortion-free low end, this amp delivers. It supports both high-level (speaker wire) and low-level (RCA) inputs for easy integration with a variety of systems. With a selectable low-pass filter, variable bass boost, and bridgeable power, the JAOne gives you the flexibility to dial in serious low-frequency impact without taking up unnecessary space. Why it’s robust Real power you can use: 300W RMS @ 4Ω, 500W RMS @ 2Ω, or 1000W RMS @ 1Ω (1% THD+N). Strong dynamic headroom: Up to 1300W max dynamic power (10% THD+N). Precision tuning: Selectable low-pass filter (50–150 Hz), plus variable bass boost @ 45 Hz (0–6 dB). Clean signal path: 90 dBA S/N (1 W ref) and <0.12% THD+N at 1 W for clean, efficient output. Flexible integration: Works with high-level and RCA inputs; 1Ω stable for subwoofer applications. Installer friendly: Variable gain (200 mV–6 V), 8 AWG power/ground and 12 AWG speaker wire recommendations, 30A x 3 fuses, and a compact 2.01” x 5.67” x 8.25” (H x D x W) footprint. Peak Power This amp can reach a max dynamic power of 1525 Watts for a powerful listening experience! Compact Design This amp’s compact design makes for easy, non-intrusive, and convenient installation! Efficient Power Output The JAOne Amp has a class D design for improved longevity and high efficiency power output. Product Specs: Speaker Outputs: Mono Class: D Digital CTA-2006-D Certification: Certified Speaker Inputs: High level (Speaker Wire), Low Level (RCA) Total Dynamic Power: 1000 Watts Crossover: Adjustable low-pass crossover (50 Hz – 150 Hz) Frequency Response: 20 Hz – 150 Hz Gain Adjustment: Variable 200 mV ~ 6 V Signal to Noise Ratio: 90 dBA Recommended Power/Ground Wire: 8 AWG Recommended Speaker Wire: 12 AWG Dimensions: 2" x 5.63" x 8.24" (H x D x W) Fuse Size and Type: 20A x 3

Power your subwoofer with this JA Series Class-D mono car amplifier, producing 1,000 Watts peak power with 240W RMS x 1 at 4 ohms, 400W RMS x 1 at 2 ohms, and 600W RMS x 1 at 1 ohm. The Class-D design delivers high-efficiency output and improved longevity, while the compact chassis makes for easy, non-intrusive installation under a seat or behind a panel. Flexible input options and selectable crossovers let you dial in exactly the bass you want.

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

The GM-DX871 is a 1-channel subwoofer amplifier that can deliver up to 800 watts RMS to your subwoofer, providing powerful bass with a strong and heavy beat. CTA-2006 compliant, this highly efficient Class D amplifier offers impressive, high-quality power in a compact chassis. The speaker-level inputs allow you to install this amp in a factory system without RCA connections. The built-in low-pass filter lets you optimize the sound for your vehicle's interior. Additionally, a wired bass control remote enables you to easily adjust the amount of bass from the subwoofer output. The GM-DX871 amplifier uses high-current, high-grade electronic components and gold-plated RCA connections to ensure maximum performance.
| Pros for Jensen - JAONE 1 Channel MOSFET Amplifier 500 Watts RMS x 1 @ 4 Ohms, 985 Watts X 1 @ 2 Ohms - Black/Gray | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | There were no pros for this product— | Power, Sound Quality, Size, Ease of use, Price |
| Cons for Jensen - JAONE 1 Channel MOSFET Amplifier 500 Watts RMS x 1 @ 4 Ohms, 985 Watts X 1 @ 2 Ohms - Black/Gray | |||
| There were no cons for this product— | There were no cons for this product— | There were no cons for this product— | Heat |
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