The Shiba Soku AD725D Automatic Distortion Analyzer is an extremely accurate instrument capable of measuring THD and 2nd to 5th harmonics of fundamental frequencies from 4Hz to 110kHz. This unit is capable of measuring distortion on -120dB (0.0001%) order, making this analyzer ideal for testing and evaluating the performance of high quality audio equipment and other applications where very low distortion measuremnets are required. With built-in GPIB interface, this unit can be incorporated into automated testing applications. The AG15C programmable low distortion oscillator is recommended signal source for yhe AD725D.
