Welcome to 4rockers!

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Guitar boutique amps, tuning of guitar tube amps, service support, development on requests... everything you want if you are bored from standard production! We are small EU (CZ) company specialized to guitar tube amp mods, amp and effect repairs, revoicing, sound modifications etc. We do our best to learn your tube amp sing.

We provide European amp modification/repair service with shipping service by DPD. Now with lower shipping costs from DPD (we switched from DHL). (We have to apologize to all guitarists from USA or other parts of the world: we have no idea how to transport heavy tube amp to Europe and back for reasonable prices.)