Computerized speaker calibration is a choice on numerous receivers which makes it easier to calibrate the speakers. The receiver sends exam sounds to every speaker and subwoofer, and monitors the audio having a microphone. EQ CONTROLS: The Skilled compact rack mount household theater system receiver characteristics digital LCD screen and https://4zoneamplifier83715.thenerdsblog.com/40156544/indicators-on-4-zone-amplifier-you-should-know