Class D power amplifier board using the TK2050 original Tclass digital chip (508), carefully designed to deliver sound quality comparable to Class AB while maintaining Class D efficiency. Small form factor, low distortion, efficiency, and compact size make it a upgrade for enthusiasts. Output filter network built with quality capacitors including RIFA EVOX and other types. Proper capacitor matching is key to purer sound. The selected audiograde capacitors improve supply purity, reduce impedance, and support large dynamic ranges for better overall performance. Latest version with line optimization and largecapacity filtering up to 6000 uF. Noise has been reduced, delivering improved sound quality and higher power compared to earlier revisions. Materials have been upgraded to audiophilegrade components. This Class D board offers distortion and power characteristics that are not matched by common ABclass boards such as TDA7492 or TPA3116. The boards' main feature is the use of quality materials to achieve sound. It employs audiograde capacitors and a mix of components including RIFA EVOX, BP, and other capacitors arranged to reduce loss and leverage the strengths of each capacitor. A capacitive array provides largecapacity filtering. The design uses a single widevoltage power supply, with compatibility that also supports dualsupply configurations. Applications and use cases: Upgrading a home stereo or bookshelf speaker system to achieve clearer, more dynamic sound with higher efficiency. DIY audio projects and hobbyist builds requiring a compact, performance Class D amplifier. Prototyping and integration in compact audio devices where space, efficiency, and low distortion are important.