SONY CDP-553ESD
¥ 160,000 (around 1985)
Commentary
An ES series CD player that uses optical transmission for signal transmission.
The audio circuit is a twin-mono configuration with an LR-independent twin D/A converter.
In addition, an optical transmission method has been adopted for the signal transmission from the digital circuit to the D/A converter, which completely eliminates digital interference.
High-speed FET sample-and-hold circuits, GIC low-phosphorous element filters, LC-OFC wire rods, and other products have been introduced.
The digital section employs a unilinear converter system equipped with a digital filter that completely synchronizes the digital signal processing and eliminates beat generation in principle.
We also use a carefully selected electrolytic capacitor for the power supply to reduce digital noise.
Each IC is equipped with a bypass capacitor that combines a high-sound condenser with a high-frequency condenser to reduce unwanted noise.
Uses newly developed black tapered base unit with increased vibration control effect of optical system drive mechanism.
In addition, the mechanical part, digital part, analog part and operation system are separately arranged on the copper plated chassis to completely eliminate resonance and magnetic strain.
In addition, both the digital and analog sections employ bus bars that reduce mechanical vibration of the circuit board.
A large insulator composed of copper and special rubber is used to suppress vibration from the outside.
Equipped with a digital output so that a separately sold D/A converter unit can be connected.
The terminal has a sealed electromagnetic shield structure using an isolation pulse transformer.
The power supply is a Route 6 independent stabilized power supply with separate digital, analog, servo and display sections.
It is equipped with a large power transformer with more than twice the required capacity.
The high-speed linear motor tracking mechanism reduces song selection time.
You can shuffle play up to 99 songs which are convenient for BGM.
It uses a music calendar that directly displays up to 20 tracks of track number.
Equipped with RMS function of up to 20 songs.
One touch direct music selection with 20 keys is possible.
Repeat play function.
Built-in memory backup function when power is OFF.
Equipped with AMS function.
Equipped with index search, manual search, auto delay function, auto space play function, etc.
Equipped with an output variable headphone jack.
Equipped with two line-out terminals.
Equipped with a timer standby switch.
Wireless remote control is included.
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Model Rating
| Type | Compact disc digital audio system |
| Reading system | Non-contact optical reading (using semiconductor laser) |
| Laser | GaAlAs double hetero diode |
| Number of revolutions | 500 ~ 200 rpm (CLV) |
| Playing speed | 1.2m/s ~ 1.4m/s (constant) |
| Error correction method | Sony Super Strategy Cross Interleaved Read-Solomon Code |
| Number of channels | 2 Channel |
| Compound | 16-bit straight line |
| Frequency characteristic | 2 Hz to 20 kHz ± 0.3 dB |
| Harmonic distortion factor | Not more than 0.0025% |
| Dynamic range | 96 dB or more |
| Wow and flutter | Below the measurement limit |
| Output level | 2 vrms (MSB, FIXED) |
| Headphone output level | 28 mw (32 Ω, MSB) |
| Digital output level | 0.5Vp-p |
| Power consumption | 15W |
| External dimensions | Width 430x Height 85x Depth 365 mm |
| Weight | 9.3kg |
| Attachment | Wireless Remote Control RM-D502 |