Coolsound-Lab is a little laboratory of handmade pedals, preamps, amplifiers and other musical gear run by Sandro.

    Timeline (by Sandro)

    • May 2004: my first audio pre-amplifier for hi-fi :-)
    • 2006: better quality and first pedal appeared.
    • 2007: selling first pedals and working for a luthier.
    • 2008: working seriously at "TubeOnHand" project renamed in "Coolsound" making good quality musical gears, some positive feedback received
    • 2009-2011: more visibility in audio context, musician's sessions, forums and websites, better quality and definitely wherever possible "all tube circuit technology philosophy"

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