Performance 860 Closed-Back Headphones. Part of the Ultrasone Performance Series, the Performance 860 headphones are equipped with a 40mm PET sound transducer that delivers impressive bass. The Performance 860 comes with detachable cables with a bayonet connector that will allow you to quickly change to the cable of your choice. The Performance 840 comes supplied with a 3m straight cable with a 3.5mm gold-plated jack, a 1.2m cable with a microphone and remote control, and a 6.3mm gold-plated screw-on adapter. Spatial Sound and Fatigue-Free Listening Thanks to S-Logic Plus Both the sophisticated tonal balance and patented S-Logic Plus technology provide unique reproduction of your favorite music. The decentralized arrangement of the sound transducers creates a spatial sound normally only expected from high-quality speakers. A broad stereo platform with excellent depth graduation allows listeners to completely immerse themselves in the music. This spatial impression is created by the S-Logic Plus design, which reflects sound more frequently before it reaches the inner ear. This design principle also ensures fatigue-free music enjoyment and protects the hearing. With S-Logic Plus,compared to conventional headphones, a lower sound pressure level is necessary at the same volume level (3 – 4dB). Design Inspired by Ultrasone Edition When developing the Performance series, Ultrasone drew inspiration from the design of the highly acclaimed Edition 8. For example, echoes of the Edition 8’s unique lines can also be found in both of the new Performance models. The headband pad, with a laser-engraved Ultrasone logo, is an attractive highlight. The ear cups of the Performance 860 are contoured with black and silver, whereas the Performance 840 has a completely black finish. To perfect its elegant look, Ultrasone uses high-quality materials that guarantee long-lasting satisfaction.