Hand-picked components of the finest quality are used to assure class-beating sound quality, including custom high-capacity conductive polymer chip capacitors that work to double current flow compared to the legacy model, resulting in excellent power stability and a noticeable improvement in low-end response and high-frequency articulation. A triple-thickness battery shield limits interference from vibration. Reinforcement around the headphone jack and volume-control shaft have reduced resonance and enhanced a precision feel.