- 102 Posts. Joined 10/2008
- Location: Pensacola, FL
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If my HD439 is any indication for Sennheiser's HD4xx series's general sound signature, I really do not think there is any closed one sounding similar to yours.
Sennheiser HD558 is the best bet, which is open-aire, but it is indeed substantial upgrade from HD428 and still can be played from your iDevices without much trouble.
Only problem with HD558 is that the cable is 1/4 inch instead of 1/8, and the adapter included is really, really bad and it will (NOT might) break your iDevices' headphone jack due to force. You probably want to either grab flexible 1/8 adapter like this (example: http://www.amazon.com/Cable-Adapter-Female-6-3mm-3-5mm/dp/B008JGWY2Y/ref=sr_1_1?ie=UTF8&qid=1388708794&sr=8-1 ) or just grab a replacement cable from ebay like this (example: http://www.ebay.com/itm/like/261280639444?lpid=82 )