The new K812 reference headphones are an open-back design with oversized 53-mm drivers claimed to have the highest dynamic range ever for an AKG headphone. Each K812 is built for comfort with a fast, adjustable headband and extremely soft earpads to ensure comfort. Although they cannot be folded up, AKG uses a cardan or universal joint system for the individual L/R earpieces so they freely adapt to your head and ear’s shape. The two-layer, copper-covered aluminum voice coil and new magnet system measuring 1.5 tesla units extends the K812’s operating range from 5Hz up to 54kHz—beyond the limits of human … Continue reading New Gear Review: AKG K812 Reference Headphones