Audio Analyzing Digital Multimeter 6 1/2 Digits, Identifies Peak Spectral Components, IEEE and RS-232 Interfaces The Models 2015-P and 2016-P Audio Analyzing Digital Multimeters and the Models 2015 and 2016 Total Harmonic Distortion Multimeters combine audio band quality measurements and analysis with a full-function 6 1/2-digit DMM. Test engineers can make a broad range of voltage, resistance, current, frequency, and distortion measurements, all with the same compact, half-rack measurement instrument. Two of the most powerful and precise audio spectrum analyzers available, the Model 2015-P and 2016-P offer additional processing capacity for frequency spectrum analysis. THD, THD+Noise, and SINAD measurements 20 Hz to 20 kHz sine wave generator Fast frequency sweeps 2015-P, 2016-P: Identifies peak spectral components 2015, 2015-P: 4 Vrms single-ended or 8 Vrms differential output Individual harmonic magnitude measurements 5 standard audio shaping filters 13 DMM functions (6-1/2 digits) GPIB and RS-232 interfaces