延续了WM-2的风格，进一步提高了性能和音质，机身色彩从WM-2 的3种增加为6种，是最早探索多彩化路线的机型。使用了DD(盘式直 驱系统)通过马达直接驱动飞轮，是和专业随身扛TC-D5相同的驱动方式。搭载的主动轮伺服系统抖晃率仅为0.08%,而且不易受到外部震动 影响，是非常合适随身户外使用的 Walkman
新品发行价：28000日元/机身尺寸：79×109.229毫米/重量290克/电源5号 电池×4节/电池续航时间9小时(使用碱性电池)
1982 SONY wm-dd USES a direct drive system to reduce the shaking rate of Walkman
It continues the style of wm-2 and further improves the performance and sound quality. The colors of the fuselage have been increased from 3 kinds of wm-2 to 6 kinds, making it the first model to explore the colorful route. DD(disc direct drive system) is used to drive the flywheel directly through the motor, which is the same drive type as the professional carry-on tc-d5. The active wheel servo system is equipped with a shaking rate of only 0.08%, and is not susceptible to external vibration, which is very suitable for outdoor use of the Walkman
New product launch price: 28,000 yen/body size: 79×109.229 mm/weight: 290g/power no. 5 battery ×4 / battery life: 9 hours (using alkaline battery)
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