Description

TheKorg HA-S DIY Nutube-Equipped Headphone Amp Kitfeatures audiophile components, injecting warm, analog tube-driven signal boost to any sound source. With no soldering required, the HA-S is simple to assemble, so you can quickly and easily enjoy quality audio anywhere.

Developed by Korg and Noritake Itron Corp, the Nutube is a miniaturized fully analog vacuum tube constructed with anode, grid, and filament, operating like a conventional vacuum tube in a more compact, stable, and energy efficient way. What’s more, you can further customize the HA-S by switching the negative feedback (NFB) circuit in or out of the signal path, allowing for a clean, pristine, and high-fidelity sound, or a more harmonically rich tone. Also included are two OP amps for further modifications. Advanced users will appreciate the available circuit diagrams for switching out discrete components.

Build Your Own Headphone Amplifier

• DIY kit allows you to build your very own headphone amplifier
• No soldering needed
• Authentic vacuum tube sound

Built-In Nutube

• Fully analog vacuum tube utilizing the same components as a conventional vacuum tube
• Constructed with an anode, grid, and filament, and operates as a complete triode tube
• Generates the same response and rich harmonic characteristics of conventional vacuum tubes
• Compact, stable, and energy efficient
• Transparent case allows the glow of the tube to be visible at all times

Energy Efficient

• Powered by a DC to DC converter
• Consumes less electric current for a longer battery life
• Efficient design utilizes a 26V line voltage using only two A4 batteries

Customizable Sound and Modifications

• Negative Feedback (NFB) circuit allows for a clean, pristine, andhigh-fidelitysound, or a warmer, more harmonically rich sound as expected from a vacuum tube
  • NFB Switch Off: Harmonics present in the Nutube (triode tube) will be amplified to create a sound rich in harmonics, warmth, and textures
  • NFB Switch On: Distortion ratio and frequency characteristics will be modified, creating a detailed and clean sound
• Sound Modification
  • Two OP amp output options included
  • JRC MUSE01: Premium audio oriented
  • JRC NJM4580: Industry standard
• Customize and adapt the sound
  • For advanced users
  • Circuit diagrams available
  • Easily change discrete components to make your own unique headphone amp matching your desired tone and performance