Sennheiser HD 820 Over-the-Ear Audiophile Headphones Ring Radiator Drivers with Glass Reflector Technology, with Balanced Cable Black HD 820 - Best Buy
Sennheiser IE 200 In-Ear Audiophile Headphones Black IE 200 - Best Buy
Audiophile Headphones Under $300 at Crutchfield
Amazon.com: Sennheiser IE 300 in-Ear Audiophile Headphones - Sound Isolating with XWB Transducers for Balanced Sound, Detachable Cable with Flexible Ear Hooks, 2-Year Warranty (Black) (Renewed) : Electronics