View this product description in Norwegian.

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!

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.

Vacuum Tube: Nutube 6P1

Connections:INPUT/OUTPUT stereo minijack

Controls:volume, internal NFB (Negative Feedback) switch

Output impedance:10O?recommended load:15O or more

Power:2 alkaline AA batteries

Autonomy:approx. 9 hours

Dimensions (W x D x H):111 × 65 × 29mm

Weight:110g(without batteries)