Minirator MR2 is a powerful audio generator, offering a full range of useful analog test signals for calibration, maintenance and repair of professional audio equipment.
The rotary settings wheel combined with surrounding fast access function keys enables instant and intuitive operation without compromising fine adjustment capabilities. Instrument operation is further enhanced with a backlit LCD, illuminated mute button, safety hand strap, jack for external DC power supply and an USB interface for firmware updates.
Sine output MR2 generates extremely pure sine waveforms at freely selectable frequencies. In addition, sweep signals may be defined within any frequency interval and with a step resolution as fine as 1/12th of an octave. Pink noise, white noise, or 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, Delay Additional test signals for measuring speaker- or cable polarity and propagation delays ideally complement the companion ML1/AL1 analyzers.
Intuitive Operation – The most frequently used parameter changes such as wave form, level and frequency are accessible via function keys. The sensitivity of the rotary wheel is adjustable with the “SENS” 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 – The typical battery life time is 20 hours. For continuous operation an optional mains power supply is available. The USB interface enables firmware updates via the NTI website.
Enhanced Analog Audio Signal Generator – Basic Signals – MR-PRO offers the same range of audio signals as the MR2. The optimized output stage Features even lower residual distortion than the MR2, combined with an extended level range up to +18 dBu.
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.
Measurement Functions – Sophisticated and unique technology continuously measures load impedance, balance and any phantom power voltage, providing a detailed view of the connected load for rapid fault finding.
Cable Test – The built-in cable tester verifies the proper 1:1 pin connection through any cable connected between the XLR output and the built-in XLR input. Alternatively an optional Cable Test Plug may be used for single ended installations.
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 Minirator MR-PRO instruments.
User Wave Forms (.WAV) – 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.
MR2 or MR-PRO – The Minirator is available as MR2 and MR-PRO. While the MR2 has been optimized for “Value at a most attractive price,“ the MR-PRO has been developed with additional innovative functionality for even more demanding applications.
- Sine Wave, Sweeps, Noise & more Frequency Resolution to 0.01 Hz
- External Power & USB Connector
- Backlight for LCD & Mute Key
- +8 dBu Max
- Output Level tHD+n < -90 dB (0.003%)