Audio analyzers are used to objectively test and measure the audio performance of electronic and electro-acoustical devices. Spectrum analyzers, also known as RF analyzers, measure the magnitude of an input signal versus frequency within the full frequency range of the instrument. Their primary use is to measure the power of the spectrum of known and unknown signals. These instruments for measurement and testing are essential to maintaining high fidelity sound, particularly in live sound environments where variables are constantly changing. ProAudio.com has over 20 different audio and RF analyzers in stock - all from the best brands in the business.