Incredible bass response due to the 100mm planar drivers and closed back design. Our Planar Magnetic drivers have superior impulse response, and make the headphones sound much more realistic. It's the most neutral closed back headphone available. Our exclusive glass-infused nylon rings are rugged and improve the sound quality. Comes with our new steel suspension headband and memory foam earpads for added comfort. Rugged travel case is available separately: SKU #CSE1019-KT Hand crafted in California: Every LCD-X headphone is engineered and meticulously handcrafted then rigorously tested and calibrated before leaving our Southern California facility. This ensures your Audeze headphones will sound incredible from the first moment you listen to them, and many years after.