About: JL Audio VX400/4i 4-Channel Car Amplifier with Digital Signal Processing — 75W RMS x 4
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
Features:
Unprecedented, Onboard DSP Tuning Power!
- Powerful DSP permits optimizing each channel’s timing, frequency response and output levels, for exceptional sound quality.
- TüN™ Software delivers fast and easy setup, at your fingertips. Make all adjustments with a clear interface. Free TüN™ software is available for computers and most handheld devices.
2nd-Gen NexD2™ Switching Amplifier Technology
- Advanced, high-speed switching technology delivers reference-grade power and efficiency.
- DSP-synchronized power supply and output channels produce world-class sound quality with very low noise and distortion.
Ultra-Versatile Analog and Digital Inputs/Outputs
- Differential-Balanced Analog Inputs accept speaker level signals up to 16V RMS, including those from factory systems. Delivers outstanding noise rejection to prevent alternator whine and other noises.
- Optical Digital (Toslink) Inputs permit direct connection of S/PDIF digital sources, bypassing A/D converter. Accepts up to 24 bit/192 kHz input.
- Analog and Digital Pre-Outs (pass-through or fully configurable): RCA Pre-Outs (4V RMS Max) and Optical (Toslink) Output at 24 bit/96 kHz
- Automatic turn-on options via signal-sensing or DC-offset sensing
JLid™ System Command and Control with Networking Capabilities
- Proprietary JL Audio protocol provides control interface and all communication for VXi amplifiers and optional JLid™ accessories, including:
DRC-100 / DRC-205 (Digital Remote Controllers): Offers convenient DSP preset selection and level adjustments from the driver’s seat.
VXi-BTC Bluetooth® Communicator: Adds wireless connectivity for amplifier configuration from a compatible iOS® or Android® device.
VXi-HUB Optical Network Hub: Provides network connectivity for up to six VXi amplifiers, allowing full-system DRC control and preset selection. Up to two VXi-HUBs can be daisy-chained to control up to ten VXi amplifiers.
Specifications:
Rated Continuous (RMS) Power @ 14.4 V
- @ 4 Ω 75 W RMS x 4
- @ 2 Ω 100 W RMS x 4
- Bridged @ 4Ω 200 W RMS x 2
Rated Continuous (RMS) Power @ 12.5 V
- @ 4 Ω 60 W RMS x 4
- @ 2 Ω 90 W RMS x 4
- Bridged @ 4Ω 180 W RMS x 2
General Specifications:
- Frequency Response: 12 Hz - 21 kHz (+0, -1dB)
- S/N Ratio, referred to highest rated power (Analog Inputs): 99 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- S/N Ratio, referred to 1 W (Analog Inputs): 80 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- S/N Ratio, referred to highest rated power (Digital Inputs): 101 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- S/N Ratio, referred to 1 W (Digital Inputs): 81 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- Damping Factor @ 4 Ω: >100 / 50 Hz
- Damping Factor @ 2 Ω: >50 / 50 Hz
- THD+N @ Rated Power: <1% @ 2 Ω per Ch.
- Input Voltage Range @ RCA Inputs: 200 mV - 16 V RMS
- Min.Copper Power / Ground Wire Gauge: 4 AWG wire
- Fuse Rating: 40 A (AFS, AGU or MaxiFuse™)
Features:
- 4-channel car amplifier
- 75 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
- 200 watts RMS x 2 bridged at 4 ohms
- Class D amplifier design with NexD2™ switching amp technology
Digital Signal Processing:
- 24-bit 96 kHz digital processing
- DSP adjustments and settings made via computer, tablet, or smartphone running JL Audio's TüN app via USB, via Bluetooth (tablets and phones) with BTC Bluetooth option
- Input routing and mixing
- Adjustable gain controls with clip indication
- Fully adjustable high-pass, low-pass, and bandpass filters
- Selectable filter slopes (6, 12, 18, 24, 30, 36, 42, 48 dB/octave)
- 10-band EQ
- Phase and polarity control
- Time alignment in 0.01 ms (1/8") increments
Connection Features:
- Differential-balanced inputs eliminate noise coming from your vehicle's electrical system
- Preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input)
- High-level inputs — up to 16 volts RMS (about 60 watts)
- DC offset or signal sensing auto turn-on eliminates need for remote lead
- 2-channel digital input and output (S/PDIF: up to 24-bit 192 kHz in, 24-bit 96 kHz out)
- 2-channel analog preamp output (4V RMS)
- JLid™ connections for optional Network Hub, Bluetooth Communicator, and Digital Remote Control
- USB connection for device running TüN app (6-foot cable included)
- Wiring, fuse, and hardware not included with amplifier
- 4-gauge power and ground leads and a 40-amp fuse recommended
- 9-1/16"W x 2-1/8"H x 6-11/16"D
What's in the Box:
- 4-Channel amplifier
- Power connector
- 14" Analog Input harness (15-pin D-Sub/6 RCA)
- 18" ABCD Speaker output harness
- 6' USB cable (Type A USB on one end and Type B USB on other end)
- 4 Corner caps
- Corner cap tool
- 2 Silver thumbscrews
- 2 Black hex cap machine screws
- 2.5mm Hex wrench
- 3mm Hex wrench
- JL Audio logo badge
- Connection Guide
- Registration card