Zero distortion at even the highest volumes. Swappable filters that work like an EQ and let you customize your listening experience. A replacement cable, in case the original one gets snagged. With near-universal acclaim from audiophile reviewers, these may be the best non-custom earbuds ever made. The catch? A $600 price tag that makes them more expensive than many custom models. By all means buy them if you can. We just can't bring ourselves to recommend them.