★The pinnacle of closed-back headphones that accurately reproduce high-resolution, wide-bandwidth, and high-density audio signals. ◎The highest performance closed-back monitoring headphones in AKG's history, inheriting the latest technology from the open-air flagship "K812-Y3" and carefully tuned to suit the closed-back housing. The 53mm diameter driver, the largest of any AKG product, is driven by a powerful magnetic circuit with a magnetic flux density of 1.5T (Tesla), providing a wide dynamic range while accurately reproducing even the most subtle signals. ◎The voice coil is made of a two-layer structure using copper-clad aluminum. It is extremely lightweight, and combined with the strong magnetic circuit, it significantly improves transient characteristics and expands the playback frequency range from 5Hz to 54kHz. The diaphragm is made of composite material, which significantly improves damping performance while suppressing split vibrations. In addition, the center of the diaphragm is equipped with an airflow dome structure with a cylindrical part in close proximity, which controls the flow of air into the housing and further reduces distortion. ◎The newly designed closed housing provides excellent sound insulation, making it ideal for demanding recordings with demanding standards. ◎The driver is highly sensitive and has a low impedance of 36 ohms, allowing for high-quality monitoring even when used with portable devices. ◎The around-ear ear pads completely cover the ears, and in addition to a three-dimensional structure that increases the area that comes into contact with the back of the ear, they also use 3D slow retention technology that maintains the shape of the surface that comes into contact with the ears. This reduces pressure on the sides of the head while providing a comfortable fit. They also use "protein leather," a functional material with a texture similar to genuine leather that has excellent moisture absorption and retention properties, helping to maintain the appropriate humidity inside the ear pads. ◎The headband has a mesh structure that prevents stuffiness and can be adjusted to 11 different lengths. The connection to the housing uses a sturdy metal universal joint. It moves freely, allowing the housing to maintain the optimal angle relative to your head. ◎The housing is made of die-cast aluminum with an anodized finish for rust prevention, achieving excellent durability. The cable connection part uses a LEMO terminal for improved reliability. ◎ Comes with a dedicated carrying case that allows you to carry the headphones while maintaining the shape of the ear pads. ■Specifications/Structure: Closed type ·Sensitivity (1kHz): 98dB SPL/mW・Playback frequency range: 5Hz to 54kHz Maximum allowable input: 300mW Impedance: 36 ohms - Ear pads: Around-ear, detachable, synthetic leather - Input connector: 3.5mm stereo mini plug (gold-plated) Cable: Detachable, single-sided Weight: 390g (excluding cable) Accessories: Headphone cable (3m straight, OFC), Standard plug adapter (screw type, gold plated), Ear pad replacement tool, carrying case