Sennheiser HD-800 Headphones Upgraded with Case Dampener and Superdupont Resonance Attenuator It is in like new condition as you can see in the pictures. Only selling because I purchased a Focal Utopia. UPGRADED TO THE "S" LEVEL BY AVATAR ENGINEERING VIA CASE DAMPENER AND THE SUPERDUPONT RESONANCE ATTENUATOR! THE BEST OF THE BEST! COMES WITH A BALANCED CABLE ALONG WITH A 6 NINES SILVER 1/4 ADAPTER Price reduced to $750 ! This is a fantastic deal!!