Warranty & service

Every piece of gear carries a 1-year limited warranty from the date of delivery. It covers defects in materials and workmanship under normal use.

This warranty is given in addition to your statutory rights: it does not limit the legal guarantee of conformity in the European Union and the United Kingdom.

Every unit is assembled, tuned and tested by Dmitriy Gubchenko and his team in Kazakhstan, and serviced by our workshop during the warranty period.

• Consumables, including, without limitation, vacuum tubes, fuses, batteries and ear pads.
• Shipping to and from the service centre, which is paid by you.

The warranty is void if the equipment has been modified, opened by unauthorized persons, exposed to improper voltage or damaged by misuse.

Our liability is limited to the purchase price. We are not responsible for indirect damages or costs caused by incorrect installation or integration with other equipment.

• Write to us and describe the issue; a damaged or defective unit is reported within 72 hours of receipt, with photos and video of the unpacking, the package and the malfunction.
• We may inspect the unit.
• We issue a Return Merchandise Authorization (RMA) number and shipping instructions when you open a request. Please do not ship anything back without an RMA number.

Write to us about your unit

• Warranty: 1 year from the date of delivery.
• A longer term is available only as a paid extended warranty, chosen when you order.
• Damage or a defect on arrival: reported within 72 hours of receipt.
• After the warranty expires: paid repair, for as long as parts exist.
• Made to order: no returns except a defect we confirm.
• This does not affect any mandatory rights you have under the law of your country of residence.

• If we confirm a defect, the unit is repaired or replaced at our service centre in Kazakhstan at our expense.
• Every shipment is paid by you: to the service centre and back, including for a unit damaged or defective on arrival. Repair or replacement of a confirmed defect is at our expense.
• We will give you the address for your warranty shipment once you open a service request. We can receive units in Kazakhstan, Germany or China — whichever is more convenient for you; the receiving point is confirmed for each case. Authorized returns travel with their RMA number.
• For mainland China, the repair route is agreed with you when you contact us.

You can extend the warranty when you order:

• +1 year (2 years in total): 25% of the unit price.
• +2 years (3 years in total): 40% of the unit price.

Every unit is serviced by our workshop during the warranty period. After the warranty expires, repairs are paid.

Circuit diagrams and measurement records are kept for every unit by its serial number, so any unit can be returned to specification.