Enhanced Compatibility: The Douk Audio U3 PRO features 3.5mm AUX and RCA inputs and 3.5mm/6.35mm headphone jack outputs, making it compatible with a wide range of audio sources, including MP3 players, iPods, smartphones, tablets, computers, and CD players. It's also compatible with most headphone models, providing a diverse listening experience with a variety of headphones.
Built-in Voltage Boost Circuit: Thanks to its innovative circuit design, the built-in voltage boost circuit ensures that the amplifier circuit always operates at a high voltage of ±14V, even when powered by DC 5V. This results in extremely low background noise, a wide frequency response, excellent transient response, pure and transparent sound, and good dynamic range.
Outstanding Output Power: With a maximum total output power of 1500mW under a 32Ω load, the U3 PRO can easily drive low or high impedance headphones from 18-600Ω. Operating in Class A, it delivers rich, deep sound quality with ultra-low distortion, warmth, and finesse. Classic OP+BUF Architecture: The U3 PRO features a pure DC amplifier circuit using the OP42 and BUF634. The pluggable op-amp socket design allows the OP42 to be replaced with OP17, AD797, AD843, AD847, OPA627, etc., providing audiophiles and DIY fun.
High Cost Performance: With its compact and elegant appearance, it can drive most headphones on the market and deliver a great surprise. It provides greater power, better sound field and detail, making it ideal for home and office desktop audio systems.
