Uit de handleiding: Your SA-1 presents one of the best values available today in a high quality Real Time Frequency Spectrum Analyzer designed by ADC. The SA-1 Real Time Frequency Spectrum Analyzer offers a means of effectively and accurately compensating for deficiencies. The SA-1 grasps the essence of the sound itself, and allows you to actually see the characteristics of the sound as the signal passes through the component, freeing you from the need to depend on your ears alone when using the graphic equalizer. From component-derived frequencies to room acoustics, you are able to visually determine all the minute compensations made by the graphic equalizer. • 10 Bands (31 Hz, 62 Hz, 125 Hz, 250 Hz, 500 Hz, 1 KHz, 2 KHz, 4 KHz, 8 KHz, 16 KHz), plus an average band can provide Real Time Peak Level values of the sound frequency spectrum. • The Peak Hold function allows the display to be held for the easiest to observe and most accurate frequency response. • The Pink Noise generator produces a stable and constant level of noise output. • The range selector switch enables you to choose a display based on maximum levels of 12 dB, 24 dB, or 36 dB to match the level of input power and to obtain the most functional display. • The calibration control allows the display to be regulated to the easiest to read position in relation to the value setting of the range selector. • The mode switches allow you to select modes for either right or left channels separately, or both channels together for simultaneous measurement.