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Repair


Our tube amplifiers will accompany you for a lifetime. Should there be a malfunction in spite of everything, we will pick up the amplifier, repair it, and return to your home in Switzerland. Your amplifiers are as costly to us as they are to you since we've built them with our own hands.

While your colotube product is under warranty, repair will be free of charge. Only after the 5-year warranty period, we will charge you for the time of repair needed.

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