SONY CDP-M59
¥ 24,800 (released in 1989)
Commentary
A mini component size CD player with 8 x oversampling 18-bit D/A conversion.
The digital filter is an 8 x over-sampling 18-bit digital filter with Sony's unique noise-shaping technology, and the D/A converter is a high-speed dual D/A converter that provides D/A conversion with four times the resolution of 16-bit signals.
The digital circuit is equipped with the next-generation LSI CXD-2500, the fourth generation.
In the CXD 2500, the RAM capacity has been increased to 32 kbit from the conventional external configuration. Moreover, it is integrated into a single chip. This enables digital data exchange inside the LSI, greatly reducing unnecessary radiation noise, reducing interference with audio circuits, and improving error correction capability.
A newly developed pickup with a built-in RF amplifier is used in the pickup section, enabling low-impedance signal output and improving sound quality through low-noise and high-stability.
The servo circuit is equipped with S Servo III.
The S Servo II prevents the disturbance of the servo current from adversely affecting the analog section through the power supply. Noise components that adversely affect the analog section are removed with a low-pass filter to supply a smooth servo current. In addition, the power supply from the weak power supply section is stabilized to reduce the influence on the audio circuit.
Equipped with a custom edit function, you can perform six functions : peak search, time edit, program edit, time fade, variable fade and manual fader.
With the Peak Search function, you can perform a high-speed search of all songs and play them repeatedly for about 4 seconds before and after the point where the volume level is the highest.
With the Time Edit function, you can use the Time Set button or the Direct Key to set the length of one side of the tape. When you press the Edit button, the program is performed for side A starting with the first track. If you encounter a time-over track, the program automatically sets the longest track among the tracks that fit within the time. When you press the Edit button again, the program is performed for side B.
You can also program the songs you want to include first and then time-edit the remaining time.
With the Program Edit function, you can program your favorite songs in any order while checking the accumulated time using the direct keys or AMS keys. When you press the pause button, the A side is completed, and then the B side is completed at once.
With the time fade function, if you enter the length of the tape, it fades out at the specified time.
The Variable Fade function allows you to change the fade-in / fade-out operation time in units of one second from 2 seconds to 10 seconds.
With the manual faders, you can fade in / out at the desired location.
It is equipped with a delete shuffle function corresponding to 99 songs that you can leave only your favorite songs and play them randomly.
The display section has a 20-track music calendar.
Equipped with 6-mode repeat function of 1 song / all songs / part (remote control only) / program / shuffle / delete shuffle.
Equipped with an autospace function that adjusts the interval between songs to 3 seconds.
It is equipped with a music search function that enables fast forward and fast backward while listening to music.
Equipped with a headphone port with volume.
Wireless remote control is included.
Model Rating
| Type | CD Player |
| Reading system | Non-contact optical reading (using semiconductor laser) |
| Laser | GaAlAs double hetero diode |
| Number of revolutions | 200 ~ 500 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 |
| Frequency characteristic | 2 Hz to 20 kHz ± 0.5 dB |
| Total harmonic distortion factor | 0.008% or less (EIAJ) |
| Signal-to-noise ratio | 100 dB or more (EIAJ) |
| Dynamic range | 92 dB or more (EIAJ) |
| Channel separation | 95 dB or more (EIAJ) |
| Wow and flutter | Below the measurement limit (± 0.001% W. peak) (EIAJ) |
| Output level | 2Vrms(Fixed) |
| Headphone output level | 10 mW (32 Ω) |
| Power consumption | 9W |
| External dimensions | Width 355x Height 95x Depth 305 mm |
| Weight | 3.0kg |
| Attachment | Wireless Remote Control RM-D190 |