The HA-S is a Nutube-equipped DIY Headphone amp kit that will let you enjoy the highest quality audio anywhere. No soldering is required, so even if you are new to the world of DIY, you will be able to assemble the HA-S to add a warm, analog tube-driven signal boost to any sound source in no time! DIY Made Easy: Assemble your own headphone amplifier effortlessly, enjoying authentic vacuum tube sound without the need for soldering. Revolutionary Nutube Technology: Featuring a fully analog vacuum tube developed by KORG INC. and Noritake Itron Corporation, the HA-S offers rich harmonic characteristics in a compact, energy-efficient design. Energy Efficient: Powered by a DC to DC converter, the Nutube consumes less current, extending battery life while delivering authentic tube sound. Customizable Sound: Choose between high fidelity and warm, rich sound with the NFB switch. Swap between premium OP amps for further sound customization. Unleash endless sound possibilities with the HA-S and enjoy high-quality audio anywhere!
![Nu:Tekt HA-K1 nutube vacuum tube headphone amplifier construction kit [Assembly and soldering required]](https://cdn.shopify.com/s/files/1/0577/7601/3495/files/chuya-online_161666.jpg?v=1722702192&width=480)