JL Audio VX400/4i 4 Ch. Class D Full-Range Amplifier with Integrated DSP, 400 W

VXi amplifiers combine JL Audio’s advanced amplifier technology with a powerful digital signal processor, all within a compact and beautiful package that is easy to install and offers unprecedented tuning power and flexibility.

At the heart of each VXi amplifier is a triple-core AKM® DSP engine with a custom configuration. This powerful DSP not only enables powerful tuning capabilities, but it also helps to improve amplifier audio performance by acting as a master clock for the full-range audio amplifier sections. Further amplifier performance gains have been achieved via minimum loop area output designs, DirectFET® output devices and closely coupled output capacitor banks. The result is a new level of Class D amplifier performance, with outstanding efficiency, reliable power delivery and world-class audio quality.

The triple-core DSP engine has ample power to enable a full suite of powerful signal processing functions. These include powerful input switching, routing and mixing that allow a wide range of sources and configurations. Multiple banks of parametric equalization can be assigned to individual channels or groups of channels. Also included for each amplifier output channel and the analog pre-outs: high pass and low pass filters, delay, all-pass filter, polarity and output level trim. Optical, digital pre-outs feature the ability to EQ and level control the digital stream.

Instead of using traditional control knobs and switches, VXi amplifiers are easily configured from the driver’s seat, using JL Audio’s free TüN™ software on a compatible computer, tablet or smartphone. Users can define up to six active preset tunings that can be called up at the push of a button using one of the compatible DRC controllers (sold separately).

4-Channel Class D Full-Range Amplifier with Integrated DSP, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω - 14.4V

Designed to simplify great audio, every VXi amplifier combines our advanced NexD2™ switching amplifier technology with an integrated, full-featured digital signal processor.

With our second-generation NexD2™ technology, the VX400/4i full-range amplifier outputs up to 75 watts per channel into 4 ohms, or 100 watts into 2 ohms. It can also be bridged into 4 ohms, producing up to 200 W x 2.

The NexD2™ full-range technology in this amplifier is DSP-controlled and features a reduced loop area design utilizing DirectFET™ outputs for outstanding fidelity, very low noise and exceptional efficiency. The amplifier chassis is ultra-compact, with all connections on one side, to greatly simplify installation into tight spaces.

Instead of traditional control knobs and switches, all amplifier adjustments and DSP functionality are configured via a compatible external device (PC, Tablet or Smartphone), with the appropriate JL Audio TüN™ Software application installed.

Amplifier includes: Power Connector (for 4 AWG wire), Analog Input/Pre-Out Harness, Speaker Output Harness, 6 ft A/B USB Cable.

TECHNICAL DATA:

RMS Power @ 14.4V75W x 4 @ 4Ω. 100W x 4 @ 2Ω. 200W x 2 @ 4Ω Bridged
Output Channels 4
Voltage 12V
Class D
Features Advanced Rollback Protection Differential Balanced Inputs Jlid NexD2 Switching
Fuse Rating 40A
Cable Gauge 4AWG
Amp Turn-On Signal Sensing DC Offset 12V
Frequency Response 12-24kHz
Signal-to-Noise Ratio Analogue 99dB / Digital 100dB
Filter N/A
Controller DRC-100 / DRC-205
Input Channels 2 / 4 Optical
Input Type High Level / Low Level
Input Sensitivity Low Level 200mV-2V
Input Sensitivity High Level 800mV-16V
Height 5.4cm
Width 22.9cm
Depth 16.8cm