70V/100V Speaker Test Solution

70V/100V Speaker Testing


Flexus FX100 Audio Analyzer

Handheld Solution Desktop / Rack-mount Solution

Handheld Solution

The Minirator MR-PRO measures the impedance and power rating of distributed speaker systems. Deviations from the expected result identify problems such as bad connections, incorrect tap connections or short circuits. Use the optional 70V/100V Protection Adapter for safe operation.

The impedance test supports the verification of distributed loudspeaker installations and shows detailed information of the connected load. The test result shows if the connected speaker system is in good order as well as the required amplifier power ratio. The power is automatically calculated by the measured impedance for 25 V, 35 V, 50 V, 70.7 V, 100 V, 140 V, 200 V systems.

      Minirator MR-PRO Impedance Detail       Minirator MR-PRO Power
                    Impedance and Phase                                    Apparent Power and Phase

Order Information


Exel Impedance Meter Kit

  • Minirator MR-PRO
  • 70V/100V Protective Adapter
  • Mains Power Adapter
  • Exel System Case

Buy at the web shop or contact NTI Americas .

Desktop / Rack-mount Solution

The PureSound speaker test system allows impedance response & resonance frequency testing of 100 Volt speakers, which are often used in public address systems. Lower speaker test voltages, such as 75V, 50V, 25V are also supported. In the past the speaker and the 100V transformer had to be tested separately as individual components. The complete assembly could not be tested. Assembling faults often have been detected at the actual speaker installation on-site only.

The PureSound speaker test solution offers the all-in-one solution testing the completely assembled 100V speaker with transformer. The RT-IB 100V Impedance Box enables impedance measurements up to 30 kohm, allowing testing of all power-taps of a 100V speaker transformer.

Test Configuration:

FX100 Configuration 100V Speaker


Order Information

Flexus FX100 Audio Analyzer

PureSound™ Speaker Test System

  • Flexus FX100 Audio Analyzer
  • PureSound™ Option
    (includes RT-Speaker Software)
  • 100V RT-IB Impedance Box
  • Measurement Microphone M2010
  • Precision Calibrator 94/114 dB
  • Environment Sensor
  • FX100 Rack Mounting

Contact NTI Americas .


Contact NTi Audio

NTi Audio Contact Americas  
Brian MacMillan
+1 503 684 7050

Related Solutions

Related Products