Luxman L-507uXII INTEGRATED AMPLIFIER Price $4200+

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The L-507uXII integrated amplifier earns its Mark II status by combining the knowledge and experience of developing refined pure Class A integrated amplifiers with state of the art technology. The L-507uXII features the New LECUA 1000 attenuator and a discretely configured buffer circuit as well as the Version 4.0 ODNF (Only Distortion Negative Feedback) original feedback circuit from LUXMAN to achieve spatial expression, overwhelming power and clarity that is comparable to a separate amplifier. Technology has progressed but the philosophy remains the same.The L-507uXII represents a quantum leap in integrated amplifier design and reflects the global perception of LUXMAN as the leader in brilliant audio expression and reproduction.

New LECUA*1000 computerized attenuator
The New LECUA1000 is the most important part of the pre-amplifier section and handles volume adjustment of sound signals at micro levels. A computerized attenuator, the New LECUA1000 is an integral part of the amplifier circuit and performs in the same way as the high-end C-900u LUXMAN control amplifier. The New LECUA1000 enables the volume to be adjusted smoothly and finely in 88 steps thereby minimizing the deterioration of the sound quality. In addition, a 3D layout has been introduced in the New LECUA1000 allowing the substrates to be placed in three dimensions. A direct connection between the attenuator circuit and amplification circuit is made to minimize the signal transmission route and improve efficiency. What is more, this type of design is insensitive to external vibration, eliminates any change in sound quality depending on the position and durable so that it will not decline with the passage of time.
*LECUA stands for "Luxman Electronically Controlled Ultimate Attenuator".