U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V

Featuring an innovative circuit design with a broad DC 5-20V input working voltage, the amplifier circuit can operate at a high voltage of 26V, delivering an excellent background noise index. It offers wide frequency response extension, superb transient response, outstanding purity and transparency, and a good dynamic range. Utilizing the original TI-NE5532 classic op-amp and a transistor expanding current circuit, it employs a 1300mA large current output transistor operating in Class A status for ultra-low distortion. The resulting sound is warm, delicate, full, and mellow. The pluggable op-amp socket design allows for convenient upgrades to different op-amps, offering significant DIY fun and playability for audiophiles.

The sound is smooth and mellow, suitable for listening to vocals, string music, classic, or pop music, and even exhibits unique charm when playing rock. With a mini size and exquisite appearance, it offers great value. It easily drives most headphones on the market, providing greater power, a better sound field, and more detail, making it very suitable for home or office desktop audio system use. It has strong drive power, easily handling most high-impedance headphones such as: HD580, HD600, HD650, K701, K702, Q701, DT880, T70, T90, SR225, SR325, and RS1e