Description
JL Audio® VXi Car Full-Range Amplifier – 4-Channel with Integrated DSP (VX400/4i)
Part Number: 010-03330-00
The JL Audio VX400/4i VXi amplifier is designed for audiophiles seeking reference-grade sound quality and complete control over their car audio system. Combining second-generation NexD2™ high-speed switching technology with a powerful onboard DSP, this 4-channel amplifier delivers precise tuning, low distortion, and flexibility in a compact, stylish package. Perfect for driving multiple speakers with clarity and authority, it offers advanced features to optimise every aspect of your sound system.
Key Features
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4-Channel Class D Amplifier – delivers dynamic, efficient, and low-noise amplification.
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Integrated DSP Technology – full onboard tuning with equalization, delay, crossover routing, mixing, and more.
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Removable Connectors – power, signal, and speaker connections can be detached for easy installation.
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Flexible Turn-On Options – 12-volt remote wire, signal sensing, or DC offset for versatile vehicle integration.
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Storable Presets – up to 6 remote-controlled presets for quick recall (remote sold separately).
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Fully Configurable Output Channels – using JL Audio TüN software for routing, EQ, output level, and DRC control.
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Advanced Protection Circuits – monitors thermal conditions and prevents shutdowns to ensure uninterrupted playback.
VXi Amplifier Technologies
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JLid™ Protocol Command – allows easy control of settings for VXi amplifiers and compatible accessories.
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Differential-Balanced Inputs – reduces cable noise while accepting a wide range of input levels.
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NexD2 Switching Technology – advanced high-speed switching design for superior fidelity and efficiency.
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DSP Inside – optimizes timing, frequency response, and output levels for clean, precise sound.
Specifications – JL Audio VX400/4i
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Channels: 4
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Amplifier Class: D
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Rated Continuous Power (14.4 V, 4 Ω, <1% THD): 75 W x 4 / 200 W x 2 (Bridged)
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Rated Continuous Power (14.4 V, 2 Ω, <1% THD): 100 W x 4
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THD+N: <1% @ 2 Ω
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Frequency Response: 12 Hz – 21 kHz
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Signal-to-Noise Ratio: 101 dB (Digital Inputs, highest rated power)
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Damping Factor @ 4 Ω: >100
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Input Voltage Range (RCA Inputs): 200 mV – 16 V RMS
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Fuse Rating: 4-Channel: 40 A
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Physical Dimensions (H × W × D): 54 mm × 229 mm × 168 mm (2.12″ × 9.02″ × 6.62″)
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Weight: 2.27 kg (5 lbs)
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Operating Voltage: 11 – 14.5 V DC
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Minimum Copper Power/Ground Wire Gauge: 4 AWG
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Warranty: 2 Years
Why Choose the JL Audio VX400/4i?
The VX400/4i VXi amplifier delivers unmatched tuning flexibility and reference-quality sound in a compact form. With powerful DSP, class-D efficiency, advanced protection circuitry, and fully configurable output channels, it gives you complete control over your vehicle’s audio system. Perfect for audiophiles seeking precise, dynamic sound for multi-speaker setups with professional-grade fidelity.
