Kirchner

The Audio analyser is based on the USB instrument and the ATB 701PC or ATB 701QC program. With this system, the acoustic measurement is very easy. For the SPL measurement there is only to connect the speaker and the microphone to the box and to click on the M button in the advanced measurement program. If you want to get the sensitivity of the speaker set only the impedance of the speaker and the distance to the microphone in the program and then click on the M button.
To be sure, that all measurements are very precise, the program has the system-correction function for calibration of the system.

The ATB 701 audio analyser is for speaker and acoustic and electric measurements in the audio range. The PC drives the instrument via the USB. The measurement is independent from the soundcard of the PC.
The USB unit consists of power amplifier, microphone amplifier, impedance switch and converters. It is delivered with a calibrated measurement microphone.

Frequency range 20Hz – 22kHz, ±0.1dB
Input range 65mV – 0,7V, noise < -70dB
Distortion < 0.005%
Input impedance 2.2kΩ, microphone-power 6VDC

Frequency range 20Hz -22kHz, ± 0.2dB
Power 4Ω =10W, 8Ω = 5W
Distortion < 0.005%

12Hz – 8kHz, 1%

USB 1.1 or USB 2.0

230V~ / 50Hz / 55VA
or
110V~ / 60Hz / 55VA

320 x 64 x 253 mm