Here I will share about the arrangement of components in the box. That where the components are a series of audio amplifiers that use relatively large components, which consume a lot of places in the box to the amplifier.
But in this post I just gave inspiration only in the arrangement, or design place for neat, clean and have good audio output as well. please see image below.
1.AC 220V terminal
6.PCB kit amplifier
9.Terminal input output.
Then this is the image of the booster amplifier using 2 sets of Sanken 2SC2922 and 2SA1216 transistors, which has a high output power.