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Minirator MR2

• Basic analog audio source • Simplifies PA setups • Faster troubleshooting • Calibrated generator • Free online updates Minirator MR2 is a powerful audio generator, offering a full range of analog test signals for calibration, maintenance and repair of professional audio equipment. The signals include sine, pink noise, white noise, polarity, sweeps, chirps and delay. Instrument operation is enhanced by a rotary wheel, surrounding fast access keys, a backlit LCD, illuminated mute button, safety hand strap, jack for external DC power supply and an USB interface for firmware updates. Generator Functions * Sine Waveforms, freely selectable frequencies, up to +8 dBu * Sweep Signals, any frequency interval up to 1/12 octave * White Noise, Pink Noise * Polarity Test Signal * Delay Test Signal Intuitive Operation The most frequently used parameter changes such as waveform, level and frequency are accessible via function keys. The sensitivity of the rotary wheel is adjustable with the “sens” key. Mute Key The “mute” key is illuminated and mutes the signal generator output. A flashing backlight indicates the mute status to the operator. External DC & USB Connector For continuous operation beyond the typical 20 hours of a set of batteries, an external wall-plug power supply is available as an option. The USB interface enables firmware updates via the internet. Sine Output MR2 generates extremely pure sinusoidal waveforms with * freely selectable frequencies from 10 Hz to 20 kHz * level range from -80 to +8 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 analyze the polarity of the incoming signal.

Minirator MR2



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