Patent ID: 7583806

Claim:
A sound system for a convertible automobile having a convertible automobile top, the sound system comprising: a front loudspeaker; a rear loudspeaker; an input to receive a top state signal representative of a state of the convertible automobile top; and equalization circuitry coupled to said front and rear loudspeakers and responsive to said top state signal; the equalization circuitry configured to provide equalization based on the state of the convertible top by: selecting a first non-zero amount of delay when the convertible top is in a first state; selecting a second non-zero amount of delay when the convertible top is in a second state; and delaying, by the first non-zero amount of delay when the convertible top is in the first state and the second non-zero amount of delay when the convertible top is in the second state, signals sent to one of the loudspeakers with respect to signals sent to the other loudspeaker.