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SMD Audio Multimeter AMM-1

399.99 459.99

The Audio Multimeter AMM-1 combines useful features of a digital multimeter (DMM), an AC current probe, a Power Meter (Power Factor analyzer), an Impedance Meter, a frequency counter, and a oscilloscope into 1 tool.

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Additional Info

The purpose of this tool is to enable the user to:

  • Measure True Amplifier Power output into any load reactive or resistive

  • Measure Common DC voltages

  • Measure DC voltage drops during quick transients on cable runs or battery / charging systems

  • Measure Impedance of speakers at any power or frequency from 20Hz - 1kHz (box rise)

  • Measure Phase Difference between Voltage and Current into reactive loads (Power Factor)

  • Find Tuning Frequency of subwoofer enclosures

  • Tune subwoofer enclosures for maximum power transfer

  • Measure AC Volts (amplifier output)

  • Measure AC Amps (amplifier output)

  • Measure apparent power (VA) output, Phase Angle, and Real Power (Watts) of audio amplifier, or consumption of appliances that run on AC power

  • Measure Frequency of a Sine Wave

What is included?

  • The AMM-1 tool

  • Protective silicon rubber boot

  • Harness

  • This manual

  • Pride of ownership


  • DC Voltmeter: -100 Volts to +100 Volts

  • AC Voltmeter: 0 - 150 VRMS

  • AC Ammeter: 0 - 100 ARMS

  • AC Apparent Power: 0 - 15,000 VA

  • Power Factor: 50 - 100%

  • Frequency: 10 - 20,000 Hz

  • AC Impedance: 0 - 200 Ohms

  • True Power Dyno: 0 - 15,000 Watts

  • Auto-shut off timer: 8 - 10 minutes after ON button is pressed

  • Battery self-test and display of condition when AMM-1 is initialized