Measurement mode
Pulse-based measurement method
Pulse width
0.4 ms
Test speed
Approx. 0.2s
Pulse amplitude
≤10Vp-p
Max. sensitivity
≤25cm
Touch electronic switch
A. WF level: suitable for woofer polarity testB. M&T level: suitable for polarity test of horn loaded MF and tweeterC. EXT1 - EXT3: signal input terminal connected to an instrument
Test distance
Measurement within 2 - 4 cm distance from the center point of the pressure-proof cover of the speaker to be tested
Polarity determination
Positive polarity: green LED indicator lights up and beeps.Negative polarity: red LED indicator lights up, but the buzzer does not sound.
Number of operators
The switch can be switched automatically, and the test of polarity and impedance can be done by one person.
Overall dimension (mm)
85（H）X 205（W）X 280（L）
Instrument weight
2.3kg