?Douk Audio Tube Headphone Amp: for XLR, 4.4mm, 6.35mm HiFi Headphones, Stereo Preamplifier for Amplifiers, Speakers, Home Desktop Audio System, with VU Meter & German Valvo Vacuum Tubes? (E2)

Features

• ​Diverse Headphone Compatibility​: Drive any headphones (16Ω-600Ω) via triple jacks—XLR/4.4mm/6.35mm—plus a 6.35mm-to-3.5mm adapter. Achieve 2000mW power with dual TPA6120 chips, delivering studio-grade clarity for demanding models like Sennheiser HD650 or Beyerdynamic DT 990.
• ​German Valvo Tube Sound Signature​: Military-grade German Valvo ECF801 tubes operate at 175V for immersive, warm audio. Experience classic tube warmth with rare components, reproducing vinyl-like richness for jazz, orchestral, and vocal tracks.
• ​Dual-Mode Preamp Flexibility​: Switch effortlessly between RCA audio sources. Use as a standalone HiFi preamplifier, headphone amp, or both simultaneously—perfect for studio monitors/desktop speakers while privately monitoring via headphones.
• ​Timeless Aesthetic Design​: Walnut wood panels, vintage VU meters, and exposed vacuum tubes blend retro-industrial elegance. Enhances desks, studios, or living spaces as a functional art piece.
• ​Customizable Op-Amp & Premium Parts​: Swap the LME49720 op-amp (compatible with Muses02/2604/2134) for personalized sound. Upgraded with Japanese ALPS potentiometers and German WIMA capacitors—even repurposed components ensure audiophile-grade signal purity.