# Dirac with subwoofer

**URL:** <https://arcam.discourse.group/t/dirac-with-subwoofer/1512>\
**Category:** Uncategorized\
**Created:** [January 7, 2025, 12:01pm UTC](https://arcam.discourse.group/t/dirac-with-subwoofer/1512 "2025-01-07T12:01:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Wilco](https://avatars.discourse-cdn.com/v4/letter/w/b2d939/32.png) [@Wilco](https://arcam.discourse.group/u/Wilco)\
**Post date:** [January 7, 2025, 12:01pm UTC](https://arcam.discourse.group/t/dirac-with-subwoofer/1512/1 "2025-01-07T12:01:51Z")

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Hi,  
Can I have your ideas about the following:  
I have an audio setup with 2 small speakers connected to the SA30. Besides that a subwoofer is connected to the pre-out of the SA30, which has his own amplifier and filter. The filter is from Groundsound, and has many options to choose cut-off frequency and various corrections (using a PC program). What procedure would you suggest to match both systems? One way could be: setting up the subwoofer first using the curve obtained by Dirac, and enter manually the corrections in the subwoofers filter, followed by using Dirac for the total system.