Douk Audio U5 PRO Small Fully Balanced Headphone Amplifier Mini Stereo Headphone Amplifier for Headset OP42 BUF634 Pluggable Op Amp Socket XLR/4.4mm

---------------------------------------------------------------------- Fully Balanced Headphone Amplifier: The U5 PRO uses a fully balanced amplifier circuit and an innovative circuit design, with a built-in voltage booster circuit that allows the amplifier circuit to always operate at a high voltage of ±14V even with a DC 5V input. It provides wide frequency response, excellent instantaneous response, pure and transparent sound, and good dynamic range. Driving Low and High Impedance Headphones: With a total output power of up to 1500mW under 32Ω load, U5 PRO can easily drive 18-600Ω low or high impedance headphones. The volume knob allows you to adjust the volume smoothly without any annoying noise or channel imbalance. Classic OP+BUF Architecture: Featuring OP42 and BUF634, U5 PRO has classic OP+BUF architecture and pure DC amplifier circuit to reproduce each note with excellent clarity and purity. Designed with 4 independent paths, it provides the ideal sound quality for music lovers. Pure analog design and pluggable operational amplifiers: Pure analog amplifier circuitry and analog control provide the most authentic sound reproduction, delivering top-class performance in every aspect of sound field, sound position, and detail. With pluggable operational amplifier socket design, OP42 can be interchanged with OP17, AD797, AD843, AD847, OPA627, etc. to enjoy different sound styles. With a compact and elegant appearance, it has low distortion, high power, pure and uncolored sound, allowing you to easily experience the subtle details and shocking swing of music. U5 PRO is the perfect partner to improve the sound quality of your XLR/4.4mm headphones. Tags: amplifier vacuum tube amplifier vacuum tube amplifier kit phono equalizer amplifier integrated amplifier vacuum tube 5.1ch amplifier amplifier small vacuum tube preamp vacuum tube radio