Original Siemens-made filter capacitor used in the SONY APX-207 (C800G) predecessor circuit — the tonal heart of the SONY C800G. This is the soul component that defines the C800G signature transparent highs and airy presence; swapping this cap fundamentally alters the microphone character. New Old Stock (NOS), decades of natural aging have brought the tone to its absolute peak. Only one unit available worldwide — once sold, gone forever.