Accuphase C-3900S Precision Stereo Preamplifier

The C-3900S sits at the top of Accuphase's preamplifier range, built around decades of refinement to the company's volume-control circuitry.

Its Dual Balanced AAVA design with ANCC noise cancellation is about as far as Accuphase has taken the idea of a distortion-free volume control, paired with 8 parallel output amplifiers and fully separate left/right power supplies for genuine channel independence. A 5-stage loudness compensator and refined left/right balance adjustment add everyday usability, and the natural wood cabinet gives it a warm, furniture-grade presence in a listening room.

• Dual Balanced AAVA volume control
• High-gain discrete current feedback type input amplifier
• ANCC technology minimizes noise and distortion
• Quiet and smooth volume sensor
• 8 parallel output amplifiers
• Left and right balance adjustment with increased adjustment steps
• 5-stage loudness compensator
• Separate toroidal power transformers for left and right
• Separate unit amplifiers for left and right
• Printed circuit boards using glass cloth fluorocarbon resin
• Wood cabinet with natural grain finish