A Quick Tip From Jack Ruston – Filtering
A lot is made of ‘clearing up the bottom end’ with high pass filters. You have to be careful – with electronic sources you can do a lot of this sort of thing, but with live instruments you make them un-natural quickly. It’s important to be aware of the way a high-pass filter affects the phase of the source, and so how that disrupts relationships in multiple-mic’d sources like a drum kit. So, horses for courses, but consider how aggressive you want to be with this depending on the nature of your production.