HYMALAYA PRO has an edge over even the venerable PCM1704k: Lower distortion, lower noise, and extremely low power consumption puts HYMALAYA PRO at the top of its class. Mighty 5.12W per Channel Balanced Output Mechanics and Thermodynamics: Center of gravity at the bottom, cooling on the top Elegant,Bauhaus-style Industrial Design High Resolution Bluetooth Wireless Audio: The Bluetooth design supports multiple Bluetooth codecs, including aptX-HD,delivering lossless sound quality for audiophile-level sonics. *Important: To maximize Bluetooth connectivity, do not place metallic objects near the rear of the EF600.