ACCUPHASE C27

The analog phono record is experiencing a quiet boom among discerning music lovers. It goes without saying that a phono equalizer of high quality is essential to extract the enormous richness of sonic information engraved on vinyl records. Furthermore, the selection of tonearm, cartridge and other parts of the playback system requires a thorough understanding of audio fundamentals. This is
a fi eld where some investment of time and effort can yield immensely satisfying results.

Accuphase has gained considerable expertise in designing and building phono equalizers, either integrated in preamplifi ers or available as option (AD-2810 and AD-20). In response to the wishes of audiophiles worldwide, we have now developed the C-27 as a high-end standalone phono equalizer amplifier, capable of exploring the possibilities of the analog disc to the fullest.

• Separate MM/MC amplifi er circuitry ensures ultra low noise
• Highly precise equalization with only ±0.3 dB RIAA deviation
• Versatile impedance switching with three settings for MM and six settings for MC
• Gain switching enables high gain of up to 70 dB
• Three analog player inputs with separate settings memory
• Balanced and unbalanced analog outputs
• Polarity selector for balanced outputs

Specifications of ACCUPHASE C27

RIAA Deviation
MM 10 - 100,000 Hz ±0.5 dB
20 - 20,000 Hz ±0.3 dB
MC 10 - 100,000 Hz ±0.3 dB
Total Harmonic Distortion 0.005%
Gain
*INPUT → BALANCED/UNBALANCED OUTPUT
GAIN button OFF (Normal) MM: 30 dB
MC: 60 dB
GAIN button HIGH MM: 40 dB
MC: 70 dB
Input Sensitivity
MM 30 dB: 63.2 mV
40 dB: 20.0 mV
MC 60 dB: 2.0 mV
70 dB: 0.63 mV
Maximum Input Voltage
(1 kHz, THD 0.005%)
MM 30 dB: 300 mV
40 dB: 95 mV
MC 60 dB: 9 mV
70 dB: 2.9 mV
Maximum Output Level
(THD 0.002% 20 - 20,000 Hz)
BALANCED/UNBALANCED OUTPUT: 8.0 V
Input Impedance
MM settings: 1 kilohm, 47 kilohms, 100 kilohms
MC settings: 3 ohms, 10 ohms, 30 ohms, 100 ohms,
300 ohms, 1 kilohm
Rated Output and Output Impedance
BALANCED OUTPUT 2 V 50 ohms
UNBALANCED OUTPUT 2 V 50 ohms
S/N Ratio
Input terminal
Input shorted (A weighting)
S/N ratio at rated output
MM, 30 dB 110 dB
MM, 40 dB 102 dB
MC, 60 dB 98 dB
MC, 70 dB 90 dB
Minimum Load Impedance BALANCED/UNBALANCED OUTPUT: 10 kilohms
Crosstalk 90 dB or less (10 kHz)
Residual Noise (A-weighted)
GAIN button OFF (Normal) MM : 6 μV or less
MC : 25 μV or less
GAIN button HIGH MM : 16 μV or less
MC : 63 μV or less
Subsonic Filter
12 dB/octave, 10 Hz
Power Requirements
230 V (Voltage as indicated on rear panel)
50/60 Hz
Power Consumption 35 W
Maximum Dimensions
Width 465 mm (18-5/16")
Height 121 mm (4-3/4")
Depth 405 mm (15-15/16")
Mass
14.5 kg (32.0 lbs) net
20.0 kg (44.1 lbs) in shipping carton

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