Many headphone companies have tried their hand at planar magnetic drivers, but none have done it quite like HIFIMAN. The result of founder Dr. Fang’s PhD research at Columbia University, its driver technology has landed the company in TIME, Forbes, and CNET’s “The Audiophiliac,” and won it the CES Editors’ Choice Award. Now, that tech is available at an unheard-of price in the Drop + HIFIMAN HE4XX: a pair of high-efficiency, open-back planar magnetics that don’t need a fancy amp to sound amazing. Listen to them directly from your smartphone, laptop, or desktop computer, or add a headphone amp to take them to the next level. The sound is smooth, engaging, and even across the frequency range, with airy, sparkly highs and the planar bass slam that HIFIMAN is known for.