Hifiman EF1000 Hybrid Tube Headphone & Speaker Amplifier - Open Box

HIFIMAN'S LATEST REFERENCE HEADPHONE AMPLIFIER This brilliantly designed, superbly powerful and high-performing headphone amp makes the ideal companion to the brand's sublime headphones. HiFIMAN excels at enhancing the headphone listening experience and the EF1000 is no exception. The brand pioneered the use of orthodynamic technology for their drivers, as opposed to the more conventional dynamic technology. With headphone models as advanced as the HE-6 and other extremely hard to drive headphones, it is crucial that it is driven by a powerful, high-caliber headphone amplifier. The EF1000 brilliantly answers this demand. NANOMETER GRADE The driver's incredible thinness, less than a millionth of a meter and extremely low mass means it can produce tremendously low distortion levels yet offer a highly dynamic response.  By combining this diaphragm and "Stealth Magnet" technology each working in harmony, the audio produced is of a remarkable tonal quality and clarity.  The "Window Sha