Housing for DollaTek TPA3116 speaker amplifier with 2*50W speaker connection and 1*100W subwoofer connection.
For assembly inert the five button in the respective holes. If available you can add spring beforehand. Use two plastic feet for the back holes of the platine. Than push the platine in the housing and fix it with two screws in the front holes. At last add the rotary buttons.
The author hasn't provided the model origin yet.