This paper details the design and implementation of a low-cost high-performance consumer headphone amplifier with a superior digital-to-analog converter. The prototype was meticulously designed and fabricated using printed circuit boards (PCBs), separating the digital and analog sections to optimize performance. The paper thoroughly examines the performance of various audio sections, supported by extensive test and measurement results. Remarkably, the prototype achieved exceptionally low distortion values, yielding a very low total harmonic distortion (THD+N) of only 0.16%. Additionally, our proposed work demonstrated a signal-to-noise ratio (SNR) of 60.2 dB, aligning with industry standards. By conducting a comprehensive design review, the study successfully achieved a design characterized by minimal noise and distortion. The paper also explores the balance between the number of components used and the overall performance of the system. Furthermore, the authors emphasize the importance of mastering test and measurement techniques in audio electronics to validate the design against the initial specifications. This work serves as a proof-of-concept for creating portable audio electronics with high-fidelity performance using PCBs, showcasing the potential for achieving superior audio quality in compact, integrated systems.