The DD-100 was a special version of the WM-DD2. As well as the ordinary features that the WM-DD2 offered, such as the disc drive capstan servo and Dolby B NR, the DD-100 included a unique feature, the switchable loudness circuit that boosted the extremes of the audio frequency range to give a more lifelike sound at low listening levels. This had not been a common feature on personal stereos up to this point (though Panasonic had offered “Ultra Phonic Mode” on some of theirs, which was similar), but later it would become commonplace under various names, for example DSL ("Dynamic Super Loudness”) for Awia and “Megabass” for Sony. Text copyright © Walkman Central. Unauthorised reproduction prohibited.
Another unusual feature of the DD-100 was that it was supplied with a pair of oversize headphones. This was of course a development in the opposite direction to the general trend in portable audio, but it did make the DD-100 package full toned, and most importantly, loud. The DD-100 is known in some circles as “the loudest personal stereo” but in truth this is all down to the headphones, the machine itself had only a moderate output similar to that of the WM-2 or WM-DD2. Models such as the WM-D6C, with its greater battery power, could produce far more level if necessary. Text copyright © Walkman Central. Unauthorised reproduction prohibited.
The name “Boodo Khan” came from the famous Nippon Budokan arena and music venue in Japan, where many well-known artists and bands, including the Beatles, have performed. Text copyright © Walkman Central. Unauthorised reproduction prohibited.