{"product_id":"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","title":"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 \u0026 German Valvo Vacuum Tubes (E2)","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e​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.\u003c\/li\u003e\n\u003cli\u003e​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.\u003c\/li\u003e\n\u003cli\u003e​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.\u003c\/li\u003e\n\u003cli\u003e​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.\u003c\/li\u003e\n\u003cli\u003e​Customizable Op-Amp \u0026amp; 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.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 15 volts_of_direct_current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Douk Audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Supply Voltage:\u003c\/strong\u003e 15 volts_of_direct_current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Supply Voltage:\u003c\/strong\u003e 15 volts_of_direct_current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Surface Mount\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Douk Audio","offers":[{"title":"Default Title","offer_id":67999846629597,"sku":"B0F8RBZLJL","price":365.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/3381\/6285\/files\/41qa0qe3KTL.jpg?v=1791003032","url":"https:\/\/listenora.us\/products\/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","provider":"Listenora","version":"1.0","type":"link"}