This is Technics equalizer calibration instrument.
Specially made for Technics SH series equalizer,but can be used for any equalizer.
make sure your equalizer+amplifier+speakers are calibrated to maximum effectiveness within the perticuler room characteristic.
This is designed for advance users only.
 
31band channel checker
Wobble tone generator for amplifier testing
DB level reading.
Dedicated RT mic for speaker output testing
9v/1.5v Battery powered.
slow/fast VU meter response.
 
Click here for specification