The Wharfedale professional DD1 headphones are a two-way system with separate bass and treble drivers, each with its own voice coil and cone. This is a 2-way, 4-speaker model. The size and diameter of the ear muffs allow for great quality reproduction of bass as low as 16 Hz. The DD1 is a well-designed model that perfectly fits the head and provides great listening comfort. These were given to me by my dad, but I have no equipment that is compatible to test. Condition as seen in pictures - some signs of age and use, but overall in very good condition. Box is tatty as shown.
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