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HA-S NUTUBE HEADPHONE AMPLIFIER KIT
HA-S NUTUBE HEADPHONE AMPLIFIER KIT
HA-S NUTUBE HEADPHONE AMPLIFIER KIT
HA-S NUTUBE HEADPHONE AMPLIFIER KIT
HA-S NUTUBE HEADPHONE AMPLIFIER KIT

HA-S NUTUBE HEADPHONE AMPLIFIER KIT

NUTUBE HEADPHONE AMPLIFIER KIT

Sale price$99.99 USD Regular price$399.99 USD
Save $300.00

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SKU: HAS

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!
Warranty

Products purchased directly from KORG US qualify for protection under warranty. Read terms: Limited Warranty

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Build your own Headphone amplifier

This DIY HA-S kit allows you to build your very own Headphone amplifier in an easy and fun way, without any soldering needed. Not only that, it provides the authentic vacuum tube sound that audiophiles know and love.

Built-in Nutube

Nutube is a new and revolutionary fully analog vacuum tube developed by KORG INC. and Noritake Itron Corporation. The same as a conventional vacuum tube, Nutube is constructed with an anode, grid and filament, and operates as a complete triode tube, effectively generating the response and same rich harmonic characteristics of conventional vacuum tubes in a more compact, stable and energy-efficient way. The transparent case of the HA-S delivers a glimpse into this technology; allowing the glow of the tube to be visible at all times.

Energy efficiency

The filament of the Nutube is powered by a DC to DC converter, which consumes less electric current and thus allows for a longer battery life than other vacuum tube equipped amplifiers. The design is so efficient that the HA-S can drive the Nutube with a line voltage of 26 V using only two A4 batteries., for a rich and authentic vacuum tube sound.

Sound possibilities

The HA-S has a special NFB (Negative Feedback) switch, that allows you to choose from a high fidelity clean and pristine sound, or a warmer, more harmonically rich sound as expected from a vacuum tube.
When the NFB switch is OFF, the harmonics present in the Nutube (triode tube) will be amplified to create a sound rich in harmonics, warmth and textures. When the NFB switch is ON, the distortion ratio and frequency characteristics will be modified, creating a really detailed and clean sound.
For further sound modification, we have included two OP amp options for the output: the premium audio oriented "MUSES01" and the industry standard “NJM4580”, both from JRC. These can be easily replaced so even the most purist audiophiles will be able to customize and adapt the sound of their HA-S to heir heart’s content.

Build Your Own High-Quality Headphone Amplifier with HA-S

Experience pristine audio with the HA-S, a Nutube-equipped DIY headphone amp kit. Perfect for beginners, this kit requires no soldering and delivers a warm, analog tube-driven sound boost to any audio source.

  • 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!

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