Abstract: In regard to an audio system using a plurality of speakers, various settings, adjustment and compensation of a receiver are enabled. A remote control apparatus which can operate and adjust a multi-channel receiver includes a transmitter for transmitting data to the receiver; a microphone for receiving sound outputted from the receiver; and an arithmetic operating unit which calculates the state of the receiver from the sound received by the microphone and analyzes an adjustment value of the receiver from a calculation result, wherein the transmitter transmits data for initiating adjustment for the receiver and transmits an analysis result obtained by the arithmetic operating unit to the receiver.