Software Downloads & Updates

Frequently Asked Questions

  • Can I use SIR Audio Tools products on multiple devices?
  • Do your plugins run natively on Apple Silicon?
  • Do you offer any discounts for students or teachers?
  • Can I upgrade to a bundle by paying the price difference?
  • My license key isn't accepted.
  • The plugin asks for the license key again, even though it has already been requested once.
  • I do not know how to open the program SpectrumAnalyzer

If you have lost your license key:

If you have problems with your order:

If you have other problems:

  • Before you send an email, please check the resources on this page, especially the F.A.Q. section, to see if they already answer your question.
  • email
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Imprint/Impressum:

Email:


Address/Adresse:

SIR Audio Tools Christian Knufinke
Schloßhofstr. 37
33615 Bielefeld

Germany

Phone/Tel.: +49 (0) 521 5247860 (no support hotline)


VAT Reg No/Ust-IdNr.: DE240401752
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Copyright 2025 SIR Audio Tools Christian Knufinke. VST is a trademark Copyright of Steinberg Media Technologies GmbH. All other trademarks and copyrights are the property of their respective owners.