A powerful balanced tube headphone amp with a variety of interfaces, the xDuoo TA-20 brings classic analog flavor to your audio setup. It features a durable aluminum alloy shell designed with anti-inference in mind, and has a small footprint—about the size of a sheet of A5 paper—to save space on your desk. The pair of 12AU7 tubes make for vivid vocals with natural details, and the balanced out delivers an impressive 2,000 mW of power. The inputs include XLR, ideal for pairing with a balanced DAC for a fully balanced output, plus two sets of RCA inputs. The TA-20 can also function as a preamplifier through the RCA out. A class-A transistor expansion, customized hi-fi capacitor, and professional volume IC complete the package.