<![CDATA[iFixit - Answers With Device "Koss Porta Pro"]]> https://www.ifixit.com/Answers/Device/Koss_Porta_Pro?rss=yes en-US Sat, 04 Apr 2026 05:15:50 -0700 <![CDATA[Koss Porta Pro: Where to get Koss ESP6 stereophones restored]]> I inherited my dad's old headphones - they are Koss ESP6 electrostatic stereophones, vintage 1968! And wow are they heavy. There's a bunch of adapters in the case but I can't get the headphones to work. Would you know how I can go about getting them restored/refurbished?

⟐ Answer edited May 20, 2020 at 6:04 MST

]]> https://www.ifixit.com/Answers/View/635777/Where+to+get+Koss+ESP6+stereophones+restored https://www.ifixit.com/Answers/View/635777 Wed, 20 May 2020 06:04:24 -0700