KORG Korg - Nu:Tekt HA-S Nutube Headphone Amplifier Kit

Product Description The Korg Nu:Tekt HA-S Nutube Headphone Amplifier Kit is a pristine, compact sound amplifier you build yourself.No soldering needed, you can put the Korg Nu:Tekt HA-S Nutube Headphone Amplifier Kit together even if you're completely new to DIY gear. What's more, it's easy and fun Now it's your chance to enjoy the authentic vacuum tube sound loved by audiophiles. Equipped with an NFB (Negative Feedback) switch, the HA-S headphone amplifier allows you to choose between high fidelity, clean sound or the warmer, harmonically rich sound you expect from a vacuum tube. You can further modify the sound of the Korg HA-S with the two included OP amp options for the output. You can install the MUSE01 for premium audio or the industry standard NJM4580. What's more, these can be replaced easily so you can really customise the Korg HA-S headphone amplifier to your own exact liking. With the circuit diagrams readily available, advanced users can easily customise the HA-S amplifier even further. Manufacturer's Description A Pristine, Compact Sound Amplifier You Build Yourself 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, analogue tube-driven signal boost to any sound source in no time! 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 analogue vacuum tube developed by KORG INC. The same as a conventional vacuum tube, 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.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. 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. For advanced users who want to customize their amplifier even more, the circuit diagrams are readily available, making it really easy to change discrete components and make your own and unique headphone amp matching your desired tone and performance -, the possibilities are endless! Specifications Vacuum Tube: Nutube 6P1 Connections: INPUT/OUTPUT stereo mini-jack Controls: volume, internal NFB (Negative Feedback) switch Output impedance: 10Ω recommended load15Ω or more Power:2 alkaline AAA batteries Autonomy: approx. 9 hours Dimensions (W x D x H):111 × 65 × 29mm Weight：110g (without batteries) Tools required: Precision screwdriver (Philips head No. 0, No. 1. flathead 2.4mm), Wrench (2 sided, 10mm wide)( Included items: manual