CLASS-A & CLASS-AB

Since the company is actually named after a particular ‘Class’ of amplifier, and the Delta Stereo uses both Class-A and Class-AB circuit topologies, you should really know a little about both these circuit types.

Basically, in order to ‘amplify’ an audio signal we need to use a special type of semiconductor called a transistor which allows you to use a low voltage (the input) to control a much higher voltage (the output). This