
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 ANALYZE THE 3 PILLARS OF AUDIO: LEVEL, FREQUENCY AND TIME
TOGETHER, MAX AND TüN® 4 SOFTWARE CAN ANALYZE ANY AUDIO SYSTEM WITH FULL DETAIL, ALL IN REAL TIME
BUILT-IN USB HUB SIMPLIFIES CONNECTION TO COMPUTER AND DSP AMPLIFIERS
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).
Up to 5 included microphones can be multiplexed to conduct single FFT measurements of level and frequency response (real-time audio (RTA) and spectrograph).
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).
Built-in digital-to-analog conversion feeds analog line level outputs and headphone outputs plus optical digital output (S/PDIF).
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.
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.
Set VXi/MVi channel delays in a flash — far more accurately than any other method.
To simplify EQ, this feature sets VXi/MVi parametric EQs to your selected target in seconds.
Perform precise manual EQ adjustments with real-time visual feedback.
MAX provides an input signal for testing — plus WAV file playback capability.
Test room modes for subwoofer placements, and adjust crossover and phase controls.
Mic array and TüN software work to streamline tuning of car audio DSP products.
Evaluate individual or multiple zones in an audio installation for frequency response and level.
RTA measurements can be captured for later viewing and data analysis.
General |
|
| Power supply | 12 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 impedance | 73 kΩ |
| Flatness ± 0.1 dB | 5 Hz-15 kHz @ 44.1 kSR, 48 kSR, 96 kSR |
| Flatness ± 0.5 dB | 5 Hz-20 kHz @ 44.1 kSR 5 Hz-22 kHz @ 48 kSR 5 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 level | 50 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 impedance | 2.2 kΩ |
| Flatness ± 0.5 dB | 10 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 dB | 5 Hz-15 kHz @ 44.1 kSR, 48 kSR, 96 kSR |
| Flatness ± 0.5 dB | 5 Hz-20 kHz @ 44.1 kSR 5 Hz-22 kHz @ 48 kSR 5 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 rates | 8 kHz-216 kHz |
| Bit depths | 8-24 bit PCM |
Outputs |
|
| DAC Output | |
| Connectors | Unbalanced RCA |
| Output impedance | 200 Ω |
| Output Level at 0 dBFS (RMS) | 4 V |
| Flatness ± 0.1 dB | 5 Hz-10 kHz @ 44.1 kSR, 48 kSR, 96 kSR |
| Flatness ± 1 dB | 5 Hz-20 kHz @ 44.1 kSR 5 Hz-22 kHz @ 48 kSR 5 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 rates | 44.1 kHz-96 kHz |
| Bit depths | 24 bit PCM |
| Output level | Defined by Signal Generator level control |
Microphones |
|
| Size, type | 1/4", pre-polarized electret (omnidirectional) |
| Flatness ± 1 dB | 50 Hz-10 kHz @ 44.1k SR, 48k SR, 96k SR |
| Flatness ± 2 dB | 5 Hz to ≥ 20 kHz @ 44.1k SR, 48k SR, 96k SR |
| Maximum input SPL | 130 dB SPL @ 1 kHz with ≤ 2% THD |
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