Sound level meters

Minirator MR-PRO professional audio signal generator

600 000 310 (NT-MR-PRO)

NTI Audio
Unit of Measure


1 Year
Technical Specifications
Brands NTi Audio
Application Impedance meter
Device Type Audio generators
  • Details
  • Downloads
  • Where to Buy
  • Ordering
The Minirator MR-PRO provides a full set of analog audio signals including:
  • sine wave
  • pink noise
  • white noise
  • delay test signal
  • polarity test signal
  • stepped sweep
  • continuous sine sweep
  • Further, a set of wav-files, useful for system optimization, is stored in the internal flash memory. Add your own personal favorites to this set.

Measurement Functions in Generator Mode

Providing a detailed view of the connected load for rapid fault finding

Additional features include:
  • XLR Signal Balance
  • Load Impedance
  • Phantom Power Voltage
  • XLR Cable Test
  • Impedance and Power Test for 70/100V line speaker systems
  • Store up to 10 instrument configurations for repetitive tasks

MR-PRO or MR2?

The Minirator is available as the powerful MR-PRO Audio Generator or the basic MR2.

  • Output Level maximum
18 dBu8 dBu
  • Flatness
+/- 0.2 dB+/- 0.5 dB
  • Output Impedance
12.5 Ω200 Ω
  • THD+N typical
< -96 dB< -90 dB
Measurement Functions  
  • Phantom Power
  • Impedance and Phase
  • Apparent Power and Phase
    (for 70V/100V distributed loudspeaker systems)
  • Signal Balance
  • XLR Cable Tester
Test Signals  
  • Sine, Sweep and Chirp
  • Pink Noise, White Noise
  • Polarity and Delay
  • User Wav-Files (*.wav)
Configurations Storage-
Protective Shock Jacket -
Hand Strap, USB Cable

    Product Documents

    No documents available

    Ordering from Amber Technology

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    Orders placed though the Amber Technology website are despatched from our Sydney warehouse. Orders placed before 1.00pm Sydney time (for items in stock) will generally be shipped on the same day. 

    We ship using Australia Post and Startrack Express. We deliver Australia-wide to residential, business and PO box addresses.

    Shipping is free for all orders over $275 including GST (effective 1 March 2018). There is a $22 (including GST) shipping and handling charge for all orders under $275 including GST. 


    You can track your shipment through the web sites of our couriers:

    Australia Post

    Star Track Express 

    We will email the tracking number for your shipment shortly after it’s been despatched. If you have any questions regarding shipping, please contact us.


    Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

    All items purchased from Amber Technology will be covered under warranty. The duration and terms of this warranty are specified by the manufacturer unless otherwise stated. Warranty information is available on the individual product listings on this site.

    Refurbished items will include a 12 month warranty unless otherwise stated.

    Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us. 

    Amber Technology maintains a nation-wide network of carefully selected Authorised Service Agents to ensure that you are never far from convenient, expert technical and service support. If your item develops a problem and requires servicing under warranty, please contact your local Authorised Service Agent.

    Stock Availability

    The availability of stock is communicated via the indicator of each product listing page. "Available" means that reasonable stock is in our warehouse, ready for immediate shipment. "Limited Stock" means that we have only a small number of items in stock. "Out of Stock" means this item is currently unavailable for immediate shipment - orders placed for ‘Out of Stock’ items will be fulfilled as soon as replacement stock arrives.

    "Special Order” items are products that are not generally kept in stock in Australia. Lead times for Special Order items vary depending on country of origin, manufacturer’s stock levels, factory production schedules and/or incoming shipment transit times. Please contact us for an estimate as to the likely lead time.

    Refurbished items

    If refurbished stock is available, this will be shown on the summary page for the product. If a product listing only allows you to choose refurbished stock, we are not holding new stock and we can no longer obtain new stock.

    Refurbished items are always in perfect working order and will include all accessories. Refurbished items are may

    • have a damaged carton
    • have been used for demonstrations
    • have been repaired
    • have minor imperfections that do not impact performance.

    Refurbished items include a 12-Month warranty unless otherwise stated.

    Technical Support

    Please visit the Get Support page to find a service agent, log a service ticket, or ask a technical question about your product.


    Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us.  


    Cable test adapter for MR-PRO NT-MR-PRO-ADAPT  


      inc GST
    RRP: POA
    Pouch for MR2 & MR-PRO NT-MR2-POUCH  


      inc GST
    RRP: POA
    70/100V protection for MR-PRO NT-VOLT-PROTECT  


      inc GST
    RRP: POA
    Minirator -40dB adapter NT-40DB  


      inc GST
    RRP: POA