Brand new leftover model. This model is discontinued and replaced by the C10x

From Luxman :

LUXMAN’s pursuit of the uppermost standards of tonal quality has lead to the creation of the C-900u. Four independent modules in the balanced amplification circuit enable the hot and cold components of the left and right audio signals to be handled independently to suppress unnecessary noise generation. Combining an evolved version 4.0 of our traditional ODNF circuit and a robust power supply has achieved high signal-to-noise performance and improved sound quality without distortion. LUXMAN’s original LECUA 1000, a stepped fixed resistance attenuator, is used for the volume adjustment system, a major feature of this new control amplifier. The 88 step range allows for more precise volume adjustment. This product is an appropriate centerpiece for any modern hifi system due to its elegant design, user friendly features, refined tone controls, premium tactile operation, and more.