XDUOO MT-04 High-Performance Balanced Tube Hi-Fi Headphone Amplifier

Dual-Tube for Warm, Mellow Sound. Equipped with two classic 6H3 vacuum tubes for preamplification. It delivers rich, smooth vocals, full-bodied mid-range and delicate, silky treble with abundant details, bringing an immersive and lingering listening experience. Class A Amplification with Powerful Output. Adopting transistor-based Class A current expansion circuit, it offers fast transient response and exceptional resolution, with robust drive and solid bass control. Rated at 2200mW output power, it drives all headphones with ease. Balanced Input / Output. Features balanced input and balanced output, which greatly improves Crosstalk performance, resolution, soundstage and background quietness. Dual Headphone Jacks, Easy & Versatile. Fitted with 6.35mm and 4.4mm dual outputs. Compatible with mainstream headphone plugs for plug-and-play use, no adapter required. External Ground Terminal, Eliminate Hum Noise. Custom ground post for MT-04 effectively reduces static interference and annoying hum caused by ungrounded enclosures, delivering pure, quiet sound.