The MK IV from Little Dot is a relatively inexpensive tube amplifier for your headphones that looks great and sounds great, but does comes with the usual tube amp caveats!
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Intro Screen Music Credit: Adhesive Wombat – Check out his channel here: http://youtube.com/adhesivewombat
Outro Screen Music Credit: Approaching Nirvana – Sugar High http://www.youtube.com/approachingnirvana