SMSL SA-36A Pro 20WPC TPA3118D2 Digital Amplifier AMP + 24V Power Supply Silver SA-36A Pro is TI (Texas Instruments) TPA3118D2DAP as the core , the use of high-quality digital amplifier EPCOS  Panasonic  TDK  TI  AV  PYCOS refined accessories and other high fever . High aluminum shell, sand Jiala Si oxidation process , screen printing and other craft laser engraving cast A-36A high volume Support DC12V-24V Power Adapter 1) DC12V Power Adapter: listening to meet the general requirements, like to listen to the human voice, grocery store background music, background music, a small supermarket, office listening to music. 2) DC24V power adapter: large dynamic and bursting like a user suggested the use of effects, better than DC12V 8 large capacity power supply filter capacitor filter Panasonic reserves required to solve large dynamic bursting . Use TDK inductors , AV / PILKOR polyester film capacitors MKP selection of the best series for output filtering. Element , though small, but collections are fine . SA-36A Pro with Texas Instruments simplest design schematics design standards. Try to use the least , the best material for the principle. Avoid unnecessary coloration to the highest possible degree of reduction of musical flavor.