KENWOOD DP-X9010
¥ 79,800 (released in 1988)
Commentary
CD transport specialized for digital output.
When the DP-X9010 was released, the term CD transport was not used yet, so it was regarded as a D/A converter-less CD player.
Low center of gravity center mechanism is adopted for internal layout.
In this system, the mechanism is laid out in the center and the center of gravity is lowered to keep the balance of the chassis and to prevent the chassis from being twisted due to rotation. In addition, the mechanism is placed in the center realize a layout in which the analog part of the servo system and the digital part of the signal system are separated, thereby preventing mutual interference.
A linear motor mechanism is used for the mechanism part.
This system has a sensor coil and a drive coil, and the pickup is mounted on a mount that moves only in the tracking direction. By amplifying the voltage generated in the sensor coil and applying NF, speed control that cannot be achieved with conventional gear drive is applied, and the pickup can move at a constant speed according to the feed signal.
Compared with the conventional method, there is almost no backlash because no gear is required, and the mount servo F characteristic extends to high frequencies because speed control is applied. This has the advantages of improved tracking and convergence in the tracking direction. In addition, the improved mounting convergence improves the tracking servo convergence during search, enabling high-speed search.
A large mass pickup with a zinc die-cast body is adopted, enabling more precise control.
Uses NEW strut suspension with special elastic rubber and double coil spring.
It is a double-structured case, and 1.6 mm thick steel plate is used for the bottom plate and mechanism chassis.
Mechanism mount adopts special insulator method.
A hybrid insulator composed of coil spring and special elastic rubber is used to support the pickup, and the low center of gravity design of the suspension system enhances the basic performance of the player.
Super optimal servo is adopted.
Display can be turned ON/OFF.
Equipped with a timer play function.
Wireless remote control is included.
.jpg)
.jpg)
.jpg)
Model Rating
| Type | CD Transport |
| Reading system | Noncontact optical readout (semiconductor laser) |
| Number of channels | 2-channel stereo |
| Number of revolutions | Approximately 200 rpm ~ 500 rpm (CLV) |
| Error correction method | Cross Interleaved Reed Solomon |
| Digital output | Light : -15dBm ~ -21dBm (emission wavelength 660 nm) Coaxial : 0.5Vp-p/75 Ω |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 13W |
| Maximum external dimensions | Width 440x Height 132x Depth 361 mm |
| Weight | 10kg |
| Attachment | Wireless Remote Control RC-PX9010 |