English to Italian Tech/Engineering Electronics / Elect Eng signal combination and filtering in an audio system

The method for processing audio signals may further include combining the first bass audio stream, the second bass audio signal stream, and the third bass audio signal stream to provide a combined bass audio signal stream; and transmitting the combined bass audio signal stream to the third loudspeaker for transduction to acoustic energy corresponding to the combined bass audio signal stream.
The first combinatorial processing may include combining the first group of the plurality of channels to create a first combined signal and filtering the combined signal with a band pass filter.
The filtering may include filtering the first combined audio signal with a band pass filter that has an upper break frequency of less than 300 Hz.