Open-back superior reference headphones that offer the most pure and natural sound possible. Designed for music professionals, they empower to experience the smallest sonic details with the most accurate balance for mixing, mastering as well as music production. They feature the largest transducers that AKG have ever built: the 53 mm transducer was developed to push the boundaries, to get as close as possible to sonic perfection. During the development process, AKG developed the transducer from scratch in order to ensure the highest in-class headroom and dynamic range. With the strongest magnet system available on the market, the headphones provide the most precise and powerful experience possible. The 1.5 Tesla magnet system offers highly accurate imaging leading to pure, natural sound. The copper-covered aluminium voice coil extends sound beyond the limits of human auditory system, hitting a full spectrum of frequencies. With the ultra-lightweight two-layer voice coil a superior impulse response and an extended frequency range up to 54 kHz is guaranteed. The headphones come with a detachable 3m long cable terminated with a gold-plated 3.5mm stereo plug and a screw on 3.5mm-6.3mm adapter. Maximum input power: 300 mW. Audio frequency bandwidth: 5 Hz-54 kHz. Sensitivity: 110 dB SPL/V. Rated impedance: 36 Ohms. Weight: 390 g.