The evolution of preamplifiers in the history of volume control. Accuphase has addressed the issue of variable resistance with our original AAVA technology, which evolved into Balanced AAVA, and later became Dual Balanced AAVA. The Dual Balanced AAVA with ANCC installed in the C-3900S represents circuitry technology that achieves the ultimate in volume control. The C-3900S is a premium preamplifier for breathing life into deeply
emotional performances and songs.

• 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