4 layers182 × 150 mm

Boards in 3 GitHub repositories, designed in KiCad, that use the SMS-1508MS-HT-R by PUI Audio, Inc. (-40℃~+105℃ 15mm 15mm 400Hz~10kHz 4mm 800Hz 800mW 8Ω Electromagnetic - Speakers ROHS). See how each wires it, with its parts, size, README and files; the SMS-1508MS-HT-R’s symbol, footprint and pinout are on its own page.



gregory-chekler/Volume-Adjusting-Speaker-PCB
The circuit takes in a signal from an audio jack, that is of a frequency from about 40 Hz to 22 kHz (the range of human hearing). The LM 378 is supplied with 9 volts and the gain is at most 200 times.