VX400/4i

• 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.

• 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™)
• Height (H)    2.12 in / 54 mm
• Width (W)    9.02 in / 229 mm
• Depth (D)    6.62 in / 168 mm
• Net Weight    5.0 lb / 2.27 kg

USER MANUAL