AKG K812 Superior Reference Headphones

The AKG K812 delivers an open, spacious listening experience with exceptional comfort during extended sessions. Built for critical listening and mastering work, these circumaural headphones combine precision engineering with thoughtful ergonomic design, making them equally at home in professional studios and serious listening rooms. The open-back design and carefully tuned 53mm transducers reveal detail across the entire audible spectrum and beyond.

Audio Performance

The 53mm dynamic transducers paired with a 1.5 Tesla magnet system and ultra-lightweight dual-layer voice coil produce an exceptionally wide frequency response extending from 5 Hz to 54,000 Hz. With a sensitivity of 110 dB SPL/V and rated impedance of 36 Ohms, these headphones deliver transparent, detailed sound with a maximum input power handling of 300 mW—sufficient for both sensitive studio equipment and standard consumer devices.

Design & Build

The open-mesh headband and 3D-shaped slow-retention ear pads provide balanced comfort and breathability without clamping fatigue. Detachable ear pads allow for replacement as needed, while the 3-meter oxygen-free copper cable with genuine LEMO connector ensures reliable signal transmission in professional environments. The included 3.5 mm to 6.3 mm adapter accommodates both consumer and professional jack standards.

Key Features

• 53mm dynamic transducers with 1.5 Tesla magnet system
• Ultra-lightweight two-layer voice coil design
• Frequency response: 5 Hz – 54,000 Hz
• Sensitivity: 110 dB SPL/V
• Rated impedance: 36 Ohms
• Maximum input power: 300 mW
• Open-back, circumaural design for natural soundstage
• 3-meter detachable cable with 99.99% oxygen-free copper construction
• Genuine LEMO connector with gold-finish 3-pin contacts
• 3.5 mm jack with 3.5 to 6.3 mm adapter included
• Open-mesh headband and 3D-shaped slow-retention ear pads
• Replaceable ear pads for long-term use

The K812 stands as a masterwork of reference-grade design—precise enough for mastering and mixing, yet refined enough for critical listening that demands nothing less than accuracy.