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How can I upgrade to the BUTE Loudness Suite?

Have you bought one of our BUTE plugins and want to get the full suite? We are now offering an easy upgrade path to the BUTE Loudness Suite 2 for all existing BUTE users!

How can I get the upgrade discount to get the BUTE Loudness Suite 2?

If you have bought a BUTE product from us before (BUTE Limiter 2, BUTE Loudness Analyser 2 or BUTE Loudness Normaliser), an automatic discount will now be applied to the BUTE Loudness Suite 2 on our website for the equivalent value of your original purchase.

I bought more than one BUTE product, can I get an extra upgrade discount?

Absolutely. If you have bought more than one product and wish to upgrade we would be happy to offer an additional discount. If this applies to you, get in touch with


Please note that you must be logged in to your account in order for the discount to be applied.

What are LUFS?
Whar are LUFS, the measurement of loudness?
About Us
About Signum Audio
How to redeem and install your copy of BUTE & SKYE plugins when purchased through a reseller

How to redeem and install your copy of BUTE or SKYE plugins when purchased through a reseller:

Please read through all the steps carefully before commencing installation.

1. After completing your purchase with a reseller, you will be sent an email containing a unique code to redeem your purchase at! It may be a mixture of letters and numbers e.g. “AB1C2D” or a 12-digit number.


2. You need to redeem your chosen product with Signum Audio. Click the link for your chosen product below to add it to your cart:

Add BUTE Loudness Suite 2 (Stereo) to cart

Add BUTE Loudness Suite 2 (Surround) to cart

Add BUTE Limiter 2 (Stereo) to cart

Add BUTE Limiter 2 (Surround) to cart

Add BUTE Loudness Analyser 2 (Stereo) to cart

Add BUTE Loudness Analyser 2 (Surround) to cart

Add BUTE Loudness Normaliser (Stereo) to cart

Add BUTE Loudness Normaliser (Surround) to cart

Add SKYE Dynamics (Stereo) to cart

Add SKYE Dynamics (Surround) to cart

Add SKYE Clipper (Stereo) to cart

Add SKYE Clipper (Surround) to cart


3. You will be redirected to a shopping cart on the Signum Audio website. Check the product is correct > enter the code from step 1) in the ‘Discount Code’ box >  Click 'Checkout'. 


3. Click 'Register' and fill out your details. Once complete, you will be redirected back to the checkout process. Click “Confirm” 


4. You will then receive an email from Signum Audio containing a serial number and 'Download Link' > Click 'Download link' and download your installer for Mac or Windows. Download and complete the install process now. 


5. Open your newly installed plugin within your DAW. You will be asked to input your serial code, which you will find in the same email from Signum Audio that contained your download link (refer to step 4). 


6. Copy and paste the serial code into the box, and press 'OK' 


7. The BUTE plugin will now be activated and ready to use. Enjoy!

If you have any problems redeeming or installing your product, please contact your resellers for support. If you are still experiencing issues, you can contact us at and we will help fix it.

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