<h5>Toa Electronics ZM-104A Portable Impedance Meter</h5>

Toa Electronics ZM-104A Portable Impedance Meter
TOA $516.00 $418.00418.00
Portable impedance meter that can measure the impedance of speaker lines up to 100 k ohms. It has an adjustable zero for accuracy on all ranges. It runs on four "AA" batteries.
Toa Electronics ZM-104A Portable Impedance Meter
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The TOA ZM-104A Impedance Meter can measure the rough impedance value of speaker lines easily in the same manner as a circuit tester measures resistance.


  • High-quality unidirectional stereo condenser microphones that can record in A-B and X-Y positions
  • XLR / TRS inputs compatible with +4dBu line level / +48V
  • 4-channel mode that can be used for dual recording and nondestructive overdub recording, etc.
  • Functions as a 2-in / 2-out USB Audio Interface for Mac, PC or iOS recording
  • Dictation mode designed for human voice recording and transcription
  • Long-time operation of maximum 18 hours is possible using just the internal batteries
  • Low-cut filter with three levels (40 / 80 / 120Hz)
  • Speed change (VSA) function for adjusting the speed from 0.5 to 2.0 times (in 0.1 increments)
  • Loop / repeat playback function that is convention for practicing music and studying languages
  • QUICK menu button for easy access to various functions
  • High-quality 24-bit / 96kHz WAV / BWF linear PCM and MP3
  • SD / SDHC / SDXC (up to 128GB) can be used for recording media
  • Playlist function
  • A chromatic tuner is equipped which is helpful for practicing musical instruments
  • Stereo mini line output / Headphone output connector
  • Powered by 4 AA batteries, USB bus power, or optional AC adapter (PS-P520E)
  • Rubber feet for improving acoustic properties during desktop recordings are included
  • Tripod attachment screw-hole built in to the unit

What's In The Box

  • Accessory Test Leads -1 Set
  • Carrying Case
  • Impedance To Power Reference Chart

Toa Electronics ZM-104A Specs

Reading Method
Measurement Range
x 1 Range: 5-1000 ohms
x 10 Range: 50-10000 ohms
x 100 Range: 500-100,000 ohms
Oscillation Frequency
1kHz (+/-10%)
Power Supply
4 x "AA" Batteries (6V)
Service Life
x 1 Range: 30 Hours
x 10, x 100 Range: 60 Hours
Dimensions (WxDxH)
4.5 x 7.3 x 2.2" (115 x 186 x 55 mm)
2.1 lbs (960 g) (With Batteries)

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New product. Includes standard 5-year manufacturer warranty.