OMT-205A Voice Coil Temperature Tester

Other models include OMT-405, OMT-404, OMT-205AH, OT-1009, and more voice coil temperature testers.

Japanese Voice Coil Temperature Meter OMT-205A

This device measures the temperature of the speaker voice coil (copper or aluminum). The temperature and input voltage results are simultaneously displayed on two digital meters. Measurements can follow signal sources such as sine waves, white noise, pink noise, or music sources within a frequency range of 20 Hz to 20 kHz.

The recorder provides output terminals, and the correlation between input voltage and temperature can be simultaneously recorded to display their relationship. Important: The signal source and power amplifier are built into the unit.

Features:

1. Input power: 1 kW peak (8Ω load)

2. Temperature measurement range: 0 - 400℃

3. Speaker DC resistance test: 1.5 - 40Ω

OMT-405 5-Channel Speaker Voice Coil Thermometer | Onsoku Website

OMT-405 5-Channel Speaker Voice Coil Thermometer

Overview

A thermometer used to measure the voice coil temperature in 5-channel speaker units.

It can measure 5 speakers simultaneously. It can also follow any source from 20 Hz to 20 kHz (sine wave, white noise, pink noise, standard load test noise, and music sources). Displays charts and values of temperature and input voltage over time.

Both BTL amplifiers and stereo amplifiers can be used.

※ If the signal source contains components below 20 Hz, accurate measurement results may not be obtained. In such cases, use a low-pass filter to attenuate components below 20 Hz.