Home Slickdeals Sennheiser HD 600 Audiophile Hi-Res Open Back Dynamic Headphones – $278 (Amazon) Slickdeals Sennheiser HD 600 Audiophile Hi-Res Open Back Dynamic Headphones – $278 (Amazon) By ARCOM - 5 December 2022 38 0 SHARE Facebook Twitter Go to the deal page: Sennheiser HD 600 Audiophile Hi-Res Open Back Dynamic Headphones – $278 (Amazon)