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Minirator MR-Pro Audio Signal Generator $540.00
NTI Audio  NEU-MRPRO
NTI Audio Warranty  |  NTI Audio List Prices

Minirator MR-Pro Audio Signal Generator
Click to enlarge


Product Details
The MR-PRO is the professional analog audio generator providing a wide range of test signals, like sine, pink noise, white noise and many more. Proprietary user wave forms may be loaded via USB into the internal flash memory. Innovative technologies include continuous monitoring of the signal balance, the phantom power and the impedance of the connected load. The integrated XLR cable tester simplifies trouble shooting tasks.

  • Standardized audio source
  • Calibrated generator
  • Uploads your own signals
  • More wav-files for download
  • Free online updates

    Generator Functions
  • Sine Waveforms, freely selectable frequencies, up to +18 dBu
  • Sweep Signals, any frequency interval up to 1/12 octave
  • White Noise, Pink Noise
  • Polarity Test Signal
  • Delay Test Signal
  • Wav-Files (*.wav)

    Measurement Functions in Generator Mode
  • Balance
  • Load Impedance
  • Phantom Power Voltage
    providing a detailed view of the connected load for rapid fault finding.

    Cable Test
    The built-in cable tester measures any cable connected between the XLR output and the built-in XLR input. It detects all common XLR wiring faults with a precise description to the user, such as “2-3 Crossed” or “Pin 2 open”. Additionally an optional Cable Test Plug may be used for single ended installations.

    Impedance and Power Test
    The impedance test supports the verifications of distributed 70/100V loudspeaker installations and shows detailed information of the connected load.
  • Impedance and Phase
  • Apparent Power and Phase

    Store Preset Configurations
    Up to 10 complete instrument configurations can be stored in the internal flash memory and reloaded for repetitive tasks. The saved settings may also be transferred to other MR-PRO instruments.

    Compensated Output Stage
    The output level corresponds over a wide range of loads to the set output voltage based upon the output impedance of the generator. Possible maximum limits when reaching the output current limit are clearly indicated.

  • Product Specifications
    Outputs: Balanced XLR, unbalanced RCA phantom power resistant
    Inputs: DC power supply, USB, XLR for cable test
    Signal Wave Forms: Sine, Polarity Test Signal, Delay Test Signal, White Noise (crest factor = 3.05), Pink Noise (crest factor = 4.5), Wave File playback (MR-PRO)
    Wave File Format:
    Sampling freq.: 48kHz
    Resolution: 16 Bit, Mono & Stereo
    Output level: 0 dBFS = 18 dBu (sine) according to EBU R68
    Frequency Setting
    Range: 10 Hz - 20 kHz
    Increment: in 1 digit steps
    Accuracy: 0.01%
    Stepped Sweep Function
    Freq. range: freely selectable
    Increment: 1/1, 1/3, 1/6, 1/12 octave
    Sweep speed: selectable 0.5 - 5 seconds
    Continuous Sweep (Chirp) Function
    Freq. range: freely selectable
    Increment: Linear / Logarithmic
    Chirp speed: 1.0 - 99 seconds per cycle
    Level
    Units: dBu, dBV, V, dBFS, %
    Increment: in 1 digit steps (e.g. 0.1 dBu)
    Output Level Ranges
    Sine, Sweep, Chirp: - 80 dBu to +18 dBu
    White Noise: - 80 dBu to +10 dBu
    Pink Noise: - 80 dBu to + 8 dBu
    Polarity, Delay Test: - 80 dBu to +16 dBu
    Flatness RL > 600 Ohm: +/-0.2 dB @ 10 Hz - 12 kHz; -0.1dB/+0.3dB @ 12kHz - 20kHz
    Accuracy @ 1kHz:± 0.2 dB
    THD+N: -96 dB (0.0016 %) @ 18 dBu; Noise Floor typ. 15 μV
    Output Impedance: 12.5 Ohm balanced; Imax = 10 mA
    Impedance Measurement:
    Method: Absolute value Z
    Meas. range: 4 Ohm - 50 kOhm balanced
    2 Ohm - 25 kOhm unbalanced
    @ f = 30 Hz to 10 kHz (Sine)
    @ Level from -20 to +18 dBu
    Accuracy: ± 10 % or ± 2 Ohm
    Power Calculation: 25 V, 35 V, 50 V, 70.7 V, 100 V, 140 V, 200 V
    Phantom Power Reading: 0 - 54 V ± 3 % or ± 0.5 V
    USB Functionality: Firmware update, Mass Storage Device
    Flash Memory: 512 MByte for storing wave files and configurations
    Display: Graphical, with back light
    Auto-Power-Off: 10, 30, 60 minutes or OFF
    Batteries: 3 x AA Alkaline dry cells or rechargeable equivalents
    Battery Life at 0 dBu, no load, typ.: 8 Hours
    Temperature Range: 0° to 45° C (32° to 113° F)
    Humidity: < 90% rel. humidity, non-condensing
    Dimensions (LxWxH): 152 x 81 x 43 mm (incl. protective shock jacket)
    Weight:including batteries 310 g (11 oz.)

    Optional Accessories
    Pouch NTI# 600 000 302
    Cable Test Adapter NTI# 600 00 311
    Minirator -40dB Adapter NTI# 600 000 312
    Exel System Case NTI# 600 00 334
    MR-Pro 70V/100V Protective Adapter NTI# 600 000 313

    Product Weight
    310 g (11 oz.) including batteries

    Product Dimensions
    152 x 81 x 43 mm
    (incl. protective shock jacket)

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