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Minirator MR-PRO

Standardized audio source • Calibrated generator • Uploads your own signals • More wav-files for download • Free online updates The MR-PRO is the professional analog audio generator providing a wide range of test signal, 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 cable analyzer simplifies trouble shooting tasks. 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 * Wave Files (*.wav) MR-PRO Impedance Measurement Functions in Generator Mode * Balance * Load Impedance * Phantom Power Voltage providing a detailed view of the connected load for rapid fault finding. MR-PRO CableTest 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. Sine Output MR-PRO generates extremely pure sinusoidal waveforms with * freely selectable frequencies from 10 Hz to 20 kHz * level range from -80 to +18 dBu Sweep The start frequency, stop frequency and a step resolution as fine as 1/12th of an octave can be adjusted. Analyzers like the Minilyzer automatically trigger to this signal and record the frequency response of a device under test. Chirp The chirp signal is a sine-wave with defined start- & stop frequency and continuous frequency increase over time. It is used in the recording of frequency responses, the measurement of impulse responses and the acoustic assessment of rooms. Delay Test Signal This is the designated reference signal to measure the acoustics propagation delay time from speaker to speaker in e.g. churches or auditoriums. Testing is carried out in combination with the Acoustilyzer AL1. Pink & White Noise Pink or White Noise is synthesized with high spectral density, normal amplitude distribution and with infinite cycle duration. An automated on-off cycle mode for convenient RT60 measurements with the Acoustilyzer AL1 is included. Polarity The saw-tooth waveform of the polarity test signal is an ideal stimulus with only moderate stress to speakers. Minilyzer ML1 and Acoustilyzer AL1 take advantage of this and correctly analyz the polarity of the incoming signal. Wave File A number of user test signals may be stored as uncompressed WAV-files in the MR-PRO memory. The selected file is seamlessly looped. Data exchange is simplified via the USB port.

Minirator MR-PRO



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