K52 Headphones. The AKG K52 over-ear, closed-back headphones provide the perfect combination of sound quality, comfort and durability. Professional drivers deliver solid bass, well-defined mids and clear highs so you can hear exactly what’s happening. The self-adjusting headband provides a personalized fit, ensuring comfort during marathon sessions. With a lightweight yet durable design, high-quality components and replaceable earpads, K52 is built to last.