Hi! I'm building an octophonic beeping system and I could need some help. My first prototype was using a basic stamp 2, with 8 pins connected to
8 speakers which worked but the sound wasn't loud enough and it was taking too much pins of the microcontroller. I decided to rectify this problem by using only 1 pin of the basic stamp for the sound output and connected it to an LM386 for amplification. The output of the amp was then connected to an ADG508 (8 channel multiplexer) and then off to the 8 speakers. New problems: the ADG508 (powered with 12volts) reduces the volume that the amp amplified. Any hint of solution ?