BowerR64
1000+ Head-Fier
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- Aug 23, 2004
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They each have their own drivers. The D55 isnt that good. IMO the D55 is the budget D77 wich these 2 seem to be "home audio" design. These both have the removable cable. The D66 and D22 have teh smaller 1mm cable extension. These are more for portable use. The D33 and D11 ive never seen.