Cardioid Subs Explained For Normal Audio People

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It’s time to bring some clarity to this term “cardioid subs”. Although we do need to know HOW to deploy them, we often skip the WHAT and WHY first. Before we get out our audio analyzers and measurement microphones we’ve got to understand a cardioid sub array’s purpose, key benefits, and sneaky caveats.
We'll answer:
- What key benefits can you expect from a cardioid setup
- When is it a BAD idea to deploy a cardioid sub rig
- How to know if your cardioid setup is working