An audio signal processing apparatus, comprising - a signal input section through which in operation at least one audio signal is received, - a splitting section coupled to the signal input section and configured to generate a first signal and a second signal from the received at least one audio signal, wherein the first signal comprises signal components of a first frequency range of the at least one audio signal and the second signal comprises signal components of a second frequency range of the at least one audio signal, the first frequency range comprising lower frequencies than the second frequency range and the first and second frequency ranges having a cross-over frequency (fxA), - a first output section coupled to the splitting section and arranged to generate a first output signal for at least one first loudspeaker from the first signal, - a second output section coupled to the splitting section and arranged to generate a second output signal for at least one second loudspeaker from the second signal; - a processing section coupled to the signal input section and receiving a volume control signal which is indicative of a user volume input and controls a volume of the first and second output signals (71, 72) depending on the user volume input, - characterized in that the processing section is configured to determine a first cross-over frequency value according to the volume control signal and to determine a second cross-over frequency value, wherein the determination of the second cross-over frequency value comprises a calculation of at least one power value of signal components over at least one frequency band of the at least one audio signal, - wherein the processing section is configured to determine the cross-over frequency (fxA) as the first cross-over frequency value if the first cross-over frequency value is greater than the second cross-over frequency value, and as the second cross-over frequency value if the second cross-over frequency value is greater than the first cross-over frequency value. - a signal input section through which in operation at least one audio signal is received, - a splitting section coupled to the signal input section and configured to generate a first signal and a second signal from the received at least one audio signal, wherein the first signal comprises signal components of a first frequency range of the at least one audio signal and the second signal comprises signal components of a second frequency range of the at least one audio signal, the first frequency range comprising lower frequencies than the second frequency range and the first and second frequency ranges having a cross-over frequency (fxA), - a first output section coupled to the splitting section and arranged to generate a first output signal for at least one first loudspeaker from the first signal, - a second output section coupled to the splitting section and arranged to generate a second output signal for at least one second loudspeaker from the second signal; - a processing section coupled to the signal input section and receiving a volume control signal which is indicative of a user volume input and controls a volume of the first and second output signals (71, 72) depending on the user volume input, - characterized in that the processing section is configured to determine a first cross-over frequency value according to the volume control signal and to determine a second cross-over frequency value, wherein the determination of the second cross-over frequency value comprises a calculation of at least one power value of signal components over at least one frequency band of the at least one audio signal, - wherein the processing section is configured to determine the cross-over frequency (fxA) as the first cross-over frequency value if the first cross-over frequency value is greater than the second cross-over frequency value, and as the second cross-over frequency value if the second cross-over frequency value is greater than the first cross-over frequency value.