Audio Innovations Classic 25

The original Audio Innovations Classic 25. In this section the original schematics, some measurements and listening experiences are shown.Here you can also find some introductory technical backgrounds.

Some straightforward modifications. This part describes some modifications that can be caried out without drastic change of the topology of the amplifier (e.g. removing global feedback, changing the ultra-linear operating mode into triode mode, apply some better components).

Less straightforward modifications. This part describes how the original circuitry can be changed into some nicer ones.

The final result. This part shows the schematics of the final topology of my amp.

Interesting links. Contains references to information containing interesting related information.