Sennheiser HD 650 Over-Ear Open-Back Headphones (Open Box) active-noise-cancelling Don't put the party on

Don't put the party on pause

5AR4 rectifier x 2

3ES Elite Edition 24k gold-plated plaque

High performance dual ES9038Q2M DACs |  670mW output power

Sennheiser HD 650 Over-Ear Open-Back Headphones (Open Box) active-noise-cancelling Don't put the party onWhen the music matters the most The HD 650 reproduces the subtle details in your music with the same confidence as the highlights. Hi fidelity sound Open back design 42mm transducers Luxurious comfort Detachable cable The (high) definition of smooth Expertly balanced acoustics, luxurious construction and timeless design. The HD 650 has all of the perks of a high performance sports car and none of the quirks. This open back headphone is beloved by