JL Audio VX600/1i DSP Mono Amplifier

Amplifier plus DSP
We've heard a lot of good things about JL Audio's VXi Series amplifiers, which combine JL Audio's latest amplifier technology with powerful signal processing. They also improved the amp's Class D performance by shortening the signal path through the amp, placing the output capacitor banks nearer the outputs, and using up-to-date DirectFET® MOSFET output devices, resulting in higher efficiency, reliability, and audio quality.

600 watts of bass
The VX600/1i mono subwoofer amplifier can put out up to 600 watts RMS for your sub, and features 3 channels of digital signal processing. You could set up a system, for example, by routing the signal from the receiver to this sub amp first, and then sending a processed stereo signal on to a separate amplifier for your other speakers.

Digital accuracy
The 24-bit 96 kHz processing for each channel includes signal routing and mixing, 10-band parametric EQ, time-alignment, high- and low-pass filters, and output level control with 0.1 dB precision. In addition to tuning the audio signal, the processor provides a master clock signal for the Class D amplification, increasing audio accuracy.

Remote control only
You make all your settings and adjustments from your compatible device running JL Audio's TüN™ software.

PC and Mac OS: TüN 3.0 — requires a USB connection (6' cable included with amp)
Android and iOS tablets: TüN Mobile — requires Bluetooth connection and the VXi-BTC Bluetooth communicator (sold separately)
Android phones and Apple iPhones: TüN Express (for Basic setups only) — requires Bluetooth connection and the VXi-BTC Bluetooth communicator (sold separately)
Other accessories you may want with this amp
This VXi amplifier features JLid™ inter-device connection ports for JL Audio's proprietary network system for controlling data. The DRC-205 digital remote control lets you adjust the master volume, subwoofer level, switch between up to six preset tunings, and indicates the amp's status via LED. An optional VXi-HUB network hub comes in handy when you have three or more VXi amps in your system, coordinating all the adjustments and controls. A FiX 82 or a FiX 86 can be used to remove factory sound processing, for higher-fidelity factory system integration for your VXi amplifier.

Product highlights:
Featured in our article: Best mono amplifiers for 2023
mono subwoofer amplifier
400 watts RMS x 1 at 4 ohms (600 watts RMS at 2 ohms)
Class D amplifier design with NexD2™ switching amp technology
Digital Signal Processing:
24-bit 96 kHz digital processing
DSP adjustments and settings made with JL Audio's TüN app (PC and Mac) via USB, via Bluetooth (tablets and phones) with BTC Bluetooth option
3 Project Levels of tuning: Basic, Advanced, Expert
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 (graphic in Basic, parametric in Advanced and Expert modes)
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 50-amp fuse recommended
9-1/16"W x 2-1/8"H x 6-3/4"D
warranty: 2 years