一款不输给二类磁带的70年代的优质一类磁带。UD系列磁带是1970年代的长期畅销的经典型号。
1972年推出的UD系列是麦克赛尔具有代表性的磁带之一，在70年代一直保持着长期畅销。与LN系列不同，UD系列为了对抗TDK主打音乐用途的SD系列，在磁性体上使用了P伽马氧化铁，提高了频率特性和信噪比。与LN系列相比，高频特性得到明显增强，可以说是70年代LH(低噪声高输出)类型的代表。另外世界上首次加入单面23分钟的C46规格。
新一代UD采用了全新PX伽马磁性体和高精度的带壳。80年的广告中出现了著名音乐人山下达郎，UD和他的知名 度也一同提高了。
最后一代UD,后续系列在83年更改为UD。这代UD性能和外观都进行的大幅升级，包括新型P磁性体和具有细纹理的抗震动带壳。
The UD series, launched in 1972, is one of Maxell’s representative tapes and has maintained a long-selling record in the 1970s. Unlike the LN series, the UD series uses P-gamma iron oxide on the magnetic body in order to counter the TDK’s main music use SD series, which improves frequency characteristics and signal-to-noise ratio. Compared with the LN series, the high-frequency characteristics have been significantly enhanced, which can be said to be the representative of the LH (low noise and high output) type in the 1970s. In addition, for the first time in the world, the single-sided 23-minute C46 specification was added.
The new generation of UD uses a new PX gamma magnetic body and a high-precision shell. In the 80 years of advertising, the famous musician Taro Yamashita appeared, and UD and his popularity have also increased. The last generation of UD, the subsequent series was changed to UD in 83 years. The performance and appearance of this generation of UD have been greatly upgraded, including the new P magnetic body and the anti-vibration belt shell with fine texture.
