Calibration & Service

For calibration, service, repair and/or upgrade of your instrument kindly follow this RMA* guideline to speed up the process. If your product is an A2, RT-2M, RT-2X or FX100 Audio Analyzer please contact NTi Audio prior to shipping your instrument in order to verify any applicable special instructions. Customers in Americas, China or Japan should select the corresponding section in the right menu bar.

  • Please proceed as follows
    • Login to
    • Select the Calibration & Service tab and complete the form
    • You will receive an automated email with the RMA number and the delivery address
    • Print this e-mail and attach it to your package
    • Ensure that the RMA number is clearly visible on the outside of the package
  • Warranty
    NTi Audio offers a one year warranty for all products from the date of purchase . In case you have to apply for repair under warranty, please include a copy of your purchase receipt with the package.
  • Calibration & Service Costs
    • The typical calibration & service costs are listed in the RMA form.
    • You may request a quotation within the RMA form, which you will receive after inspection of the instrument(s).
    • In case no service is actually required, a minimum service charge of EUR 30 (or equivalent) applies.
  • Get back the instrument(s) in
    approx. 3 weeks Applies to EU customers utilizing the cost saving service via NTi Audio Austria.
    approx. 1 week For fast service you may ship your instrument(s) directly to NTi Audio Liechtenstein; the service time is typically 1-3 working days.
  • Packing
    Please return the product in the original packaging and put it in another shipping carton for protection during transportation. The customer takes responsibility for the product during transportation to NTi Audio.
  • Delivery Address
    Please send the parcel to the delivery address stated on the email sent to you.

    NTi Audio Austria

    NTi Audio Liechtenstein

    DHL Global Forwarding (Austria) GmbH
    NTi Lager
    Zehentweg 6
    AT-6837 Weiler / Austria
    Contact: Anne Brinkmann
    Phone: +43 5523 54947 8801

    NTi Audio AG
    Im alten Riet 102
    9494 Schaan
    Liechtenstein / Europe
    Contact: Martin Gabathuler
    Phone: +423 2396060
  • Final Check
    Please verify that following items are included in the shipment:
    → Product without accessories
    → RMA form
    → In case of warranty repair: Copy of purchase receipt
    → Delivery address and RMA number are clearly visible on outside of parcel
  • Shipping
    Send the package to NTi Audio at your own cost. NTi Audio cannot accept freight collect returns.
  • Return Shipment
    If you select the cost-saving service via NTi Audio Austria, your instrument(s) will be sent back within the EU at the following flat rate:
    • Parcels <   3 kg: EUR 34
    • Parcels < 15 kg: EUR 44
    The prices include import into Liechtenstein, export back to EU and shipment to your return address.


* RMA = Return Material Authorization

Calibration & Service

Returning instruments for calibration and service is a straight-forward process. Just follow the steps below to receive a cost estimate online and an email to attach to your package within a few minutes.

Service Calibration Process

For calibration, service, repair and/or upgrade of your instrument kindly follow this RMA* guideline to speed up the process.