goodyI have the Denon AH-D1100 and the design is very similar, even those fragile hinges :/ Mine broke within 6 months, but I superglued them back on :p
goodythey will not best your mm400s. these are creative aurvanas with wood - they look great and creative aurvanas sound great but i the 400s are more heavy duty and substantially built (much more expensive too) (i own the 400s and creative aurvanas and many denon/fostex phones)