Sony CDP-X77ES

October   1 9 8 9 october 1989
October   1 9 9 0 october 1990

Refining the formula - the excellent formula !

Same bomb-proof quality as the previous versions, but with different DACs : the CDP-X77ES mainly is a "PULSE" version of the CDP-X7ESD.

Like all of Sony's "X7", the X77ES became a bestseller, too : it probably is the most common of the series, worldwide, with the CDP-X7ESD.

The drive section is arguably one of the best ever, but the DAC section of the X77ES shows a little of its age - the CDP-X777ES follower came as an clear improvement in almost all areas but this was already quite good.

hidden behind lush looks and perfect finish are :
HDLC converter system
2x 50MHz Pulse D/A (CXD-2552)
8fs / 45Bit digital filter (CXD-1244)
Multi-stage Noise Shaping
Direct Digital Sync
Super Servo III
AL base unit (BU-1D + KSS-280A)
Gibraltar tray
Frame and Beam chassis
Acousticaly Sealed Tray
Copper-plated chassis
Non-magnetic rigid aluminium top cover
analogue and digital dedicated transformers
Ceramic feet
coaxial/optical digital outputs
fixed/variable analog outputs
balanced outputs
...17kg !


The CDP-X77ES was available in black with square sideburns (EU, US ; "B" suffix) and champagne with rounded glossy sideburns (EU, JP ; "N" suffix).

Sony CDP-X77ES, image 1 Sony CDP-X77ES, image 2 Sony CDP-X77ES, image 3
Sony CDP-X77ES specifications
Title Value
Frequency response : 2Hz...20Khz (± 0,3dB)
THD : 0,0015% (EIAJ)
Dynamic range : 117dB (EIAJ)
S/N ratio : 100dB (EIAJ)
Channel separation : 110dB (EIAJ)
Digital outputs : 0,5V p-p / 75 Ohm coaxial
-18dBm / 660nm optical TOS
Analogue outputs : 2V (fixed unbalanced ; for 50kOhm load)
0V...2V RMS (unbalanced variable ; for 50kOhm load)
2V RMS (balanced XLR)
40mW / 32 Ohm (headphones)
PC : 22W
Dimensions : 47 x 12,5 x 37,5cm
Weight : 17kg.
Remote : RM-D771 (champagne)
RM-D770 (black)
List price : 180,000¥
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