Accuphase C-3900 Stereo Pre-Amplifier

To celebrate the 50th anniversary of Accuphase's founding, the development of a new flagship model to incorporate the entire wealth of the company's experience was begun. Now, after five years, the work is complete. The C-3900 represents an uncompromising harmony of technology and sensibility, boasting ultimate performance and sound quality that ushers in a new era of the preamplifier.

The Dual Balanced AAVA design with two balanced AAVA circuits delivers sonic excellence that is transparence itself. Volume adjustment is realized while retaining all the vibrant energy and richness of detail that is the life breath of an artistic performance. The supple elegance of music as reproduced by the top-of-the-line C-3900 is a moving experience that reflects the impressive depth of Accuphase know-how.

HIGHLIGHTS

• Dual Balanced AAVA volume control


• High-gain discrete current feedback type input amplifier


• ANCC technology minimizes noise and distortion


• Newly developed volume sensor construction


• Separate toroidal power transformers for left and right


• Newly developed filtering capacitors


• Separate unit amplifiers for left and right


• Printed circuit boards using glass cloth fluorocarbon resin


• Wood cabinet with natural grain finish


• High-performance headphone amplifier

SPECIFICATIONS

• Frequency Response: BALANCED/LINE INPUT, 3 - 200,000Hz +0 -3.0 dB, 20 - 20,000Hz +0 -0.2 dB


• Total Harmonic Distortion (for all inputs): 0.005%


• Input Sensitivity: BALANCED 252mV, 0.5V Output 63mV. LINE 252mV, 05.V Output 63mV


• Input Impedance: BALANCED 40 kilohms. LINE 20 kilohms


• Rated Output Voltage, Output Impedance: BALANCED/LINE OUTPUT 2 V 50 ohms


• S/N Ratio, Input-converted Noise (gain selector: 18 dB): BALANCED 118 dB, S/N ratio (EIA) 112 dB. LINE 118 dB, S/N ratio (EIA) 112 dB


• Maximum Output Level (0.005% THD, 20 - 20,000 Hz): BALANCED/LINE OUTPUT: 7.0 V, RECORDER REC (with AD input): 6.0 V LINE


• Maximum Input Level: BALANCED 6.0 V, LINE 6.0 V


• Minimum Load Impedance: BALANCED/LINE OUTPUT: 600 ohms, RECORDER REC: 10 kilohms


• Gain: (gain selector: 18 dB)＊Gain switchable to 12/18/24 dB: BALANCED INPUT → BALANCED OUTPUT: 18 dB, BALANCED INPUT → LINE OUTPUT: 18 dB, LINE INPUT → BALANCED OUTPUT: 18 dB, LINE INPUT → LINE OUTPUT: 18 dB


• Loudness Compensation: 1: +2 dB (100 Hz), 2: +4 dB (100 Hz), 3: +6.5 dB (100 Hz)


• Attenuator: -20 dB


• Headphone Jack: Suitable impedance: 8 ohms or higher, Output level: 2 V (40 ohms)


• Power Requirements: 120 V/220 V/230 V AC, 50/60 Hz (Voltage as indicated on rear panel)


• Power Consumption: 47 W


• Maximum Dimensions: Width 477 mm, Height 156 mm, Depth 412 mm


• Mass: 24.6 kg, 32.0 kg in shipping carton