About this gear
The C9II is a portable headphone amplifier built around Cayin's tribrid output design, combining a Korg Nutube vacuum tube stage with solid-state class-A and class-AB circuits that can be switched to reshape the amp's character on the fly. It's built for enthusiasts who want desktop-caliber power and tonal control in a transportable unit, capable of driving demanding planar and high-impedance headphones from a DAP or transport. This flexibility makes it as much a tone-shaping tool as an amplifier.
About Cayin
Chinese audio manufacturer founded in 1993 in Zhuhai, originally building vacuum tube amplifiers. Cayin's N-series digital audio players are celebrated for their warm, tube-like musicality — the flagship models include actual miniature tube output stages. Known for lush, euphonic sound signatures th...
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