Douk Audio U3 HiFi Mini Class A Headphone Amplifier for Desktop and Home Use, DC5V-20V, High-Resolution Audio Compatible

The innovative circuit design features a wide DC 5-20V input operating voltage range, allowing the amplifier circuit to operate at a constant high voltage of 26V, resulting in an excellent background noise index. The original TI-NE5532 classic op amp and transistor-enhanced current circuit utilizes a 1300mA high-current output transistor operating in Class A status, resulting in ultra-low distortion and a warm, delicate sound. The pluggable op amp socket design allows for various op amp upgrades. The U3 linear headphone amplifier boasts greater functionality than portable types, incorporating a unique circuit to deliver higher quality sound. Connect it to a PC or TV to enjoy more dynamic sound when watching movies, videos, or playing games. Its powerful driving power easily drives most high-impedance headphones, including: (HD580 / HD600 / HD650 / K701 / K702 / Q701 / DT880 / T70 / T90 / SR225 / SR325 / RS1e) Note: This product does not come with a power adapter. Please use a DC5V power adapter with a minimum of 1A or DC12V power adapter with a minimum of 0.5A.