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About this gear
The Mainline is Bottlehead's tube-based headphone amplifier kit, offering DIY builders a chance to hand-solder their own warm, harmonically rich amplifier designed specifically for headphones. It appeals to headphone audiophiles seeking tube amplification's musicality alongside the hands-on satisfaction of building their own gear.
About Bottlehead
Bottlehead is an American DIY tube amplifier company founded by Doc Bottlehead (Dan Schmalle) in 1998 in Poulsbo, Washington. They sell headphone amplifiers and speaker amplifiers as kits — you solder them yourself — which keeps prices low while giving owners the satisfaction and knowledge of buildi...
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