Upgrade your audio experience with the 6J1 Electron Valve Preamp Tube Stereo Bile Preamplifier Board Buffer Effector DIY Kit, designed for audiophiles and DIY enthusiasts who demand superior sound quality and reliable performance. Inspired by Classic Design This preamp board is based on the renowned Music Fax X-10D circuit schematic, with rational optimizations for enhanced stability and performance. Enjoy a 10% increase in tube output compared to the original design, delivering richer and more dynamic sound. Efficient Power Supply Powered by a single 12V AC input, the board features a built-in boost function, allowing a low supply voltage to achieve the high-pressure effect required for tube operation. This ensures efficient energy use and consistent performance. Superior Filtering System Equipped with eight 470UF capacitors, the board provides exceptionally clean capacitance filtering. The advanced power supply system, including four additional 470UF capacitors, ensures minimal noise and a pure audio signal. Noise Reduction Technology The tube filament is connected in series and powered by a DC 12V supply, effectively reducing background noise and delivering a clearer, more immersive listening experience. Premium Components Built with MET series non-polar capacitors, high-frequency low-resistance electrolytic capacitors, and 1% precision metal film resistors, this kit guarantees high fidelity and long-lasting durability. The J-class military regulation 6J1 tube ensures professional-grade audio performance. Perfect for DIY Projects Ideal for audio enthusiasts, this preamp board is easy to assemble and integrate into your existing audio setup. Enhance your home stereo, headphone amplifier, or other audio projects with warm, detailed tube sound. Transform your audio system with the 6J1 Electron Valve Preamp Tube Stereo Bile Preamplifier Board and experience the true essence of high-fidelity sound.