I have a monitor which is connected by display port, and speakers connected to the monitor via old-school 3.5mm jack. macOS (12.2.1) recognizes that sound output, and I can hear my system sounds ...

This circuit could be used for replacing your manual volume control in a stereo amplifier. In this circuit, push-to-on switch SW1 controls the forward (volume increase) operation of both channels ...

The CS3310 is a stereo digital control volume featuring two independent channels with wide adjustable range and noise-free level transitions. It offers low distortion and noise with channel-to-channel ...