beyerdynamic T 1 HiFi-Stereo Kopfh&ouml;rer Impedance 600ohm for High End and Home Audio use The increased efficiency also leaves the T1 with greater power reserves for dynamic The extremely lightweight 600 Ohm voice coil provides transparency and perfect impulse fidelity. The elegant look of the T1 compliments the technical achievements, with even the smallest of details selected by hand. Get the most out of your headphones: enjoy the T1 together with the A1 headphone amplifier as the dream team for audiophiles. Connectivity technology : Wired