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Jensen  |  SKU: JAFive
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Jensen JAFive 5-Channel Class-D MOSFET Amplifier

Sale price $429.99 Regular price $515.99


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Description

The Jensen JAFive 5-Channel Class-D MOSFET Amplifier delivers high-efficiency, full-system audio performance in a single compact chassis. Engineered to drive four full-range speakers alongside a dedicated subwoofer channel, it supplies up to 1,175 Watts of dynamic power with minimal heat buildup.

Equipped with both high-level and low-level RCA inputs, this amplifier integrates seamlessly into factory and aftermarket car audio systems. Integrated high-pass and low-pass filters, variable bass boost, and selectable gain controls ensure precise audio tuning and exceptional sound clarity across all channels.

Key Features

Brand Jensen
Model JAFive
Series Apex Series
Amplifier Class Class-D Digital
Number of Channels 5
Total Dynamic Power 1,175 W
RMS Power Output (4 Ohms) 85 W x 4 + 310 W x 1
RMS Power Output (2 Ohms) 135 W x 4 + 495 W x 1
Speaker Impedance 2 or 4 Ohm
Audio Inputs High-Level (Speaker Wire), Low-Level (RCA)
Crossover Frequency 50 Hz – 250 Hz (Adjustable HPF/LPF)
Subsonic Filter 30 Hz / 24 dB
Bass Boost Variable 0–6 dB @ 45 Hz
Signal-to-Noise Ratio 86 dBA (CH 1–4) / 88 dBA (Sub)
Frequency Response 20 Hz – 20 kHz (CH 1–4) / 20 Hz – 250 Hz (Sub)
Total Harmonic Distortion (THD+N) <0.12% (CH 1–4) / <0.20% (Sub) @ 1 W RMS
Gain Adjustment Variable 300 mV – 6 V
Fuses 2 x 40A
Recommended Power/Ground Wire 4 AWG
Recommended Speaker Wire 12 AWG
Dimensions (H x D x W) 5.1 cm x 16.6 cm x 33.2 cm
Weight 2.7 kg

Highlights

  • 5-channel Class-D digital design powers front, rear, and subwoofer channels from a single unit.
  • Delivers up to 1,175 Watts of peak dynamic power.
  • High-level and low-level RCA inputs allow easy integration with factory or aftermarket stereos.
  • Precision audio tuning with adjustable 50–250 Hz crossovers, 30 Hz subsonic filter, and variable bass boost.
  • Compact chassis measuring 5.1 cm x 16.6 cm x 33.2 cm for straightforward installation.

Compatibility

Compatible with both factory and aftermarket vehicle audio head units via high-level speaker wire connections or standard low-level RCA inputs. Supports 2-ohm and 4-ohm speaker setups.

Warranty

4-year limited warranty when registered within 60 days of purchase.

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Frequently asked questions

What are the power output ratings for the JAFive amplifier?

At 4 Ohms, it delivers 85 Watts RMS x 4 plus 310 Watts RMS x 1 for the subwoofer. At 2 Ohms, it produces 135 Watts RMS x 4 plus 495 Watts RMS x 1, with a total maximum dynamic power of 1,175 Watts.

What types of audio inputs does this amplifier support?

The unit features both high-level speaker wire inputs and low-level RCA inputs, making it compatible with both factory and aftermarket head units.

What are the physical dimensions of the amplifier?

The amplifier measures 5.1 cm in height, 16.6 cm in depth, and 33.2 cm in width.

What wire gauges are recommended for installation?

The recommended power and ground wire size is 4 AWG, and the recommended speaker wire gauge is 12 AWG.

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