Abstract: Method of controlling the volume level of a system that consisting of an audio equipment (1) comprising a micro-processor (2) and a loudspeaker (4), and of an external device (H) connected to the audio equipment (1). The external device (H) applies a first gain (G2) to an audio signal (S) before providing a first amplified audio signal (O2) to the audio equipment (1). The audio equipment (1) applies a second gain (G1) before transmitting a second amplified audio signal (O1) to the loudspeaker (4). A user of the system sets a minimum audible sound level and a maximum sound level. The microprocessor (2) calculates the second gain (G1) as a function of the first gain (G2), such that the sound level is within the limits set by the user. Thus, the user sets the volume level of the system by just setting the first gain (G2) of the external device (H).