NTI Minirator MR Pro

Quick facts: NTi Audio · NTI Minirator MR Pro · SPL + RTA · €21 + VAT per unit and day · rental in Madrid and across Spain, availability on request.

About the NTI Minirator MR Pro

The NTI Minirator MR Pro (NTi Audio MR-PRO) is a handheld analogue audio signal generator with built-in measurement functions. It outputs sine, sweeps, pink and white noise plus polarity and delay test signals, and it also measures phantom power and load impedance and tests XLR cables. It is made for sound engineers, installers and maintenance teams. Renting the NTI Minirator MR Pro in Madrid, or for jobs anywhere in Spain, gives you one for a specific setup or inspection. Ask us about availability.

What it is rented for

NTi designed it for setting up, maintaining and monitoring all kinds of audio equipment and systems. At live shows it helps you adjust levels, track down faulty cables or broken input channels and play reference songs. In fixed installations it checks signal paths, measures the impedance of 70 V/100 V loudspeaker lines and generates the STIPA test signal to check speech intelligibility in evacuation systems. According to the manufacturer, the polarity and delay signals are used with an XL2 analyser. If you need one, you could also rent the NTI XL2 from our catalogue.

Key specs

• Signals: sine, stepped sweep, continuous sweep (chirp), pink and white noise, gated pink noise, polarity and delay test signals, and WAV file playback.
• Frequency adjustable from 10 Hz to 20 kHz with 0.01% accuracy; level from –80 to +18 dBu for sine and sweep.
• Balanced XLR and unbalanced RCA outputs, both phantom-power resistant; 12.5 Ω balanced output impedance and typical THD+N of –96 dB at 18 dBu.
• Measures phantom voltage from 0 to 54 V and impedance from 4 Ω to 50 kΩ (balanced), and calculates power with reference voltages from 25 to 200 V.
• Built-in XLR cable tester and signal balance monitoring; 512 MB memory for WAV files (48 kHz, 16-bit) and configurations.
• Runs on 3 AA batteries (8 h typical at 0 dBu, no load); 152 x 81 x 43 mm with the protective shock jacket; weighs 310 g with batteries; IP51.

Frequently asked questions

How much does it cost to rent the NTI Minirator MR Pro?

On our website, the rental price is 21 € excluding VAT. Email info@peaksound.es or WhatsApp +34 636 410 986 with your dates and location, in Madrid or elsewhere in Spain. We will confirm availability and send a quote; ask what is included too.

What is the difference between the Minirator MR-PRO and the MR2?

The MR-PRO reaches +18 dBu, against +8 dBu on the MR2, and has a lower output impedance (12.5 Ω versus 200 Ω). It also adds phantom, impedance and balance measurement, an XLR cable tester and playback of your own WAV files.

Can it measure 70 V or 100 V loudspeaker lines?

Yes. It measures the impedance, phase and power of distributed loudspeaker systems, with reference voltages from 25 to 200 V. NTi recommends using its optional 70V/100V Protection Adapter. When you request a quote, ask what the rental includes.