Knowledgebase: SQ Series
Understanding Add-ons and SQ
Posted by Alex Skinner, Last modified by Alex Skinner on 24 April 2020 02:32 PM

What are Add-ons?

DEEP processing models real hardware units and can be embedded directly in the channel strip, replacing the stock processing and adding zero latency. As they are used in place of the stock processing, there is no limitation on the number of instances, so they can be used on every channel.

RackExtra FX are also modelled or real hardware units and can be selected as an FX unit in the FX page by pressing the Library key, select the unit and press Recall. Up to 8 slots are available for RackExtra FX.

Various DEEP models and RackExtra FX are available to purchase as add-ons for SQ at


How to add an Add-on to your SQ:

You will need the serial number on the back of the unit and the DNA code on the 'Utility > General > Add-ons' page.

Go to to get your free Tube Stage Preamp and purchase other add-ons.

Once you check out, go the 'My Account > Downloads' to generate your unique key. Insert your serial number and DNA code and press Generate Key.

Please note:

  • The serial number format should match the label on the back of your SQ.
  • The DNA format should be 14 characters long and contain letters and numbers, no spaces or hyphens are needed.
  • You must use the same keys on your keyboard to enter numbers in the duplicate fields.
  • Capitals will always be displayed, but entry is case sensitive.

Once you have generated your key, go back to the Add-ons screen on your SQ. Press the 'Enter Add-on Key' button. Enter the code and press OK to complete the process.

How to use DEEP processing on SQ:

To use a DEEP add-on, view the relevant processing block in the processing screen and press the Library key. For example, to load the Tube Stage Preamp, view a channel preamp section in the Processing page and press the Library key. Select 'Tube Stage' from the list and then press Recall.

To use a RackExtra FX, go to the FX page and select an empty FX slot. Press the library key and once you have found a Library setting, press recall. View the Back Panel for available routing options.