Accuphase C-57

Fully balanced configuration for an ideal phono equalizer amplifier
The C-57’s configuration provides a fully balanced phono equalizer from input to output. The combination of a high precision equalizer amplifier and a dedicated MC/MM head amplifier fully optimized for the cartridge characteristics creates a highly accurate phono equalizer. As a first, the MC head amplifier uses ANCC to further improve noise performance. Dedicated MC phono balanced inputs allow for balanced connections with record players. The C-57 combines only the best technological advances to extract the full potential of analog discs.

● MC head amplifier with ANCC
● Low-noise fully balanced configuration
● One dedicated balanced MC phono input and three sets of regular phono inputs
● Separate settings memory for each input position
● Balanced and line level output connectors
● Polarity selector for balanced output
● Monaural construction layout
● Low-noise regulated power supply circuitry unaffected by load fluctuations
● High-accuracy phono equalizer with RIAA deviation of only ±0.3 dB
● Load impedance settings for seven MC and three MM phono cartridge types
● 7-segment load impedance LED display
● Gain selector for low-output phono cartridges
● Built-in subsonic filter

Advanced features
C head amplifier with ANCC
Low-noise fully balanced configuration
Separate settings memory for each input position
Balanced and line level output connectors
Balanced output polarity selector
Low-noise regulated power supply circuitry unaffected by load fluctuations
High-accuracy phono equalizer with RIAA deviation of only ±0.3 dB
Disc equalizer assembly using glass fiber cloth fluorocarbon resin PCB with low dielectric constant and low losses
MC/MM selector
Gain selector for low-output phono cartridges
Subsonic filter ON/OFF selector
Load impedance settings for seven MC and three MM phono cartridge types with new 60 ohm setting MC: 10/30/60/100/200/300/1k ohms
MM: 1/47/100 kilohms
One dedicated balanced MC phono input and three sets of regular phono inputs
High-capacitance 25 V/15,000 μF filter capacitors
Separate high-efficiency toroidal power transformers for left and right channels
Aluminum top plate with hairline finish
Elegant side panels with natural wood grain finish
Monaural construction layout to prevent interference between channels
High-carbon cast iron insulators for superior vibration damping
High quality, high performance audio cable ASL-10B