Getting rid of unwanted low end is very important. The HPF of our SQ is a good tool for this job. But every filter does more than just ‘filter’. The phase gets shifted also. Using an app on the iPad , gives a nice visual feedback of what is happening.

Link to the used app: auSCOPE X van auDSPr

https://apps.apple.com/nl/app/auscope-x/id1524867812