Speaker array addressed by row and column selection

A speaker array comprising:

• a plurality of driver circuits arranged in an array, each of the plurality of driver circuits including a low-pass pi-filter coupled to a speaker, the low-pass pi-filter having a cutoff frequency to remove signals above a human hearing range so that an output of the low-pass pi-filter is an analog audio signal;
• an array circuit including at least one row channel, a plurality of column channels, and a plurality of row-select switches coupled between the plurality of driver circuits and the plurality of column channels;
• at least one audio source coupled to the plurality of column channels, the at least one audio source configured to generate pulse width modulated (PWM) digital signals corresponding to spatial audio;
• and
• a controller configured to transmit row-select signals to the plurality of row-select switches on a row-by-row basis to enable each row of driver circuits to receive the PWM digital signals from the at least one audio source.