JL Audio® MAX™ Audio Measurement System (MAX-KIT)

TUNE, TEST, TROUBLESHOOT AND ANALYSE ANY AUDIO SYSTEM

MAX is a professional-grade, dual fast Fourier transform (FFT) measurement system with 5 microphones. It is ideal for general audio system measurements, system tuning with DSP, troubleshooting and testing equipment, and solving OEM integration challenges. MAX has many applications in home, car, marine and professional audio.

STREAMLINES TUNING OF AUDIO DSP PRODUCTS IN REAL-WORLD CONDITIONS

5-MICROPHONE AVERAGING GIVES YOU HELPFUL REAL-WORLD MEASUREMENTS

ACCURACY IS ON PAR WITH PROFESSIONAL TEST SYSTEMS COSTING MUCH MORE

PRECISELY ANALYSE THE 3 PILLARS OF AUDIO: LEVEL, FREQUENCY AND TIME

TOGETHER, MAX AND TüN® 4 SOFTWARE CAN ANALYSE ANY AUDIO SYSTEM WITH FULL DETAIL, ALL IN REAL TIME

BUILT-IN USB HUB SIMPLIFIES CONNECTION TO COMPUTER AND DSP AMPLIFIERS

WHAT YOU'LL LOVE

DUAL FFT ANALYSIS

Conduct dual FFT measurements of up to 5 simultaneous transfer functions with precise displays of magnitude (frequency response), phase, impulse response (delay) and coherence (noise immunity).

5-MICROPHONE ARRAY

Up to 5 included microphones can be multiplexed to conduct single FFT measurements of level and frequency response (real-time audio (RTA) and spectrograph).

WIDE RANGE OF INPUTS

Put it all together with the inputs you need — including up to 5 microphones plus high-level analog signals (up to 80 volts), low-level analog signals (up to 7 volts) and optical digital signals (S/PDIF).

MULTIPLE SIGNAL OUTPUTS

Built-in digital-to-analog conversion feeds analog line level outputs and headphone outputs plus optical digital output (S/PDIF).

SIMPLE VXI/MVI AMP SETUP

For VXi and MVi amplifier users, the MAX audio measurement system offers full integration of amp DSP controls to streamline setup of measurements with one computer and one software application: TüN 4.

IT FITS IN A KIT

All hardware, mounting accessories and cables fit in a lockable, water-resistant hard case. An optional probe kit for impedance and electrical measurement is sold separately.

ACCURACY, FLEXIBILITY, SIMPLICITY

TECH HIGHLIGHTS

AUTOMATIC TRUE DELAY

Set VXi/MVi channel delays in a flash — far more accurately than any other method.

AUTOSET EQUALISATION (EQ)

To simplify EQ, this feature sets VXi/MVi parametric EQs to your selected target in seconds.

EASY MANUAL EQS

Perform precise manual EQ adjustments with real-time visual feedback.

BUILT-IN SIGNAL TEST GENERATOR

MAX provides an input signal for testing — plus WAV file playback capability.

HOME AUDIO/THEATRE

Test room modes for subwoofer placements, and adjust crossover and phase controls.

CAR AUDIO APPLICATIONS

Mic array and TüN software work to streamline tuning of car audio DSP products.

BOAT AND RV APPLICATIONS

Evaluate individual or multiple zones in an audio installation for frequency response and level.

CAPTURE AUDIO DATA

RTA measurements can be captured for later viewing and data analysis.

Engineering enhancements are ongoing and may not be reflected in the pictures, videos and specifications.

General

Power Supply12 VDC nominal (10-15 VDC range)
Inputs

High-level Inputs 1 & 2
Pin configuration XLR (Pin 1-GND, Pin 2-Signal +, Pin 3-Signal -)
Input impedance73 kΩ
Flatness ± 0.1 dB5 Hz-15 kHz @ 44.1 kSR, 48 kSR, 96 kSR
Flatness ± 0.5 dB5 Hz-20 kHz @ 44.1 kSR5 Hz-22 kHz @ 48 kSR5 Hz-35 kHz @ 96 kSR
Crosstalk, 5 Hz-20 kHz≤ – 95 dB
Crosstalk @ 1 kHz≤ – 110 dB
THD @ 1 kHz≤ 0.0012%
THD+N, 5 Hz-20 kHz≤ 0.035%
ADC headroom-4.84 dBFS @ 80 VAC peak (56.57 Vrms sine) (differentially driven)
Maximum DC offset level50 VDC, Pin 2 or 3 to GND, Pin 1 - DC
Unbalanced Mic Inputs (1, 2, 3, 4, 5)
Pin configuration Mini-XLR (Pin 1-GND, Pin 2-Signal +, Pin 3-2 VDC)
Input impedance2.2 kΩ
Flatness ± 0.5 dB10 Hz-10 kHz @ 44.1 kSR, 48 kSR, 96 kSR
Crosstalk, 5 Hz-20 kHz≤ – 115 dB
Crosstalk @ 1 kHz≤ – 120 dB
THD @ 1 kHz≤ 0.0009%
THD+N, 5 Hz-20 kHz≤ 0.01%
ADC headroom-39.5 dBFS @ 94 dB SPL
RCA Balanced (Reference Input)
Pin configuration RCA Female (Center Pin-Signal +, Shell-Signal –)
Input impedance~ 100 kΩ
Flatness ± 0.1 dB5 Hz-15 kHz @ 44.1 kSR, 48 kSR, 96 kSR
Flatness ± 0.5 dB5 Hz-20 kHz @ 44.1 kSR5 Hz-22 kHz @ 48 kSR5 Hz-35 kHz @ 96 kSR
THD @ 1 kHz≤ 0.005%
THD+N, 5 Hz-20 kHz≤ 0.035%
S/PDIF Digital Input (Optical)
Connector TOSLINK
Sample rates8 kHz-216 kHz
Bit depths8-24 bit PCM
Outputs

DAC Output
Connectors Unbalanced RCA
Output impedance200 Ω
Output Level at 0 dBFS (RMS)4 V
Flatness ± 0.1 dB5 Hz-10 kHz @ 44.1 kSR, 48 kSR, 96 kSR
Flatness ± 1 dB5 Hz-20 kHz @ 44.1 kSR5 Hz-22 kHz @ 48 kSR5 Hz-35 kHz @ 96 kSR
Crosstalk, 5 Hz-20 kHz≤ – 95 dB
Crosstalk @ 1 kHz≤ – 110 dB
THD @ 1 kHz~ 0.0014%
THD+N, 5 Hz-20 kHz≤ 0.032%
S/PDIF Digital Output (Optical)
Connector TOSLINK
Sample rates44.1 kHz-96 kHz
Bit depths24 bit PCM
Output leve lDefined by Signal Generator level control
Microphones

Size, type1/4", pre-polarised electret (omnidirectional)
Flatness ± 1 dB50 Hz-10 kHz @ 44.1k SR, 48k SR, 96k SR
Flatness ± 2 dB5 Hz to ≥ 20 kHz @ 44.1k SR, 48k SR, 96k SR
Maximum input SPL130 dB SPL @ 1 kHz with ≤ 2% THD

Note: Some JL Audio Products are not held in stock in New Zealand, but are In our Australia warehouse. Please allow additional time for shipping from our Australia warehouse to New Zealand. Buyer will be notified if not in new zealand stock..