Patent ID: 8119900

Claim:
An apparatus comprising: a plurality of audio buses; and a plurality of segments, each segment including input circuitry, a plurality of variable adjustment devices associated with the input circuitry, and a mixer, and each segment being associated with an associated audio bus from said plurality of audio buses, wherein each input circuitry is configured to receive at least one input signal from at least one electric musical device, and to deliver the at least one input signal to the associated audio bus from the plurality of audio buses, wherein, for each of the plurality of segments, each of the variable adjustment devices is associated with a corresponding one of the audio buses, and is configured to change at least one property of an input signal received by input circuitry associated with another of the plurality of segments and carried on the corresponding one of the audio buses independent from input signals carried on other of the plurality of audio buses, and wherein, for each of the plurality of segments, the mixer is configured to combine the input signals changed by the variable adjustment devices associated with the segment into an output signal; wherein each of the plurality of segments is removably docked to a housing.