Moving Target: Inside Applying Delay To Subwoofer Arrays - ProSoundWeb
Passive Cardioid Technology | Fulcrum Acoustic
A Concise Article on Cardioid Subwoofer Arrays – by Steve Bush — Bob McCarthy
Simple Cardioid Sub Setup - YouTube
NAMM SHOW 2017: QSC K Cardioid Subwoofer Dual 12-inch Active Subwoofer
Cardioid Subs - Bose Portable PA Encyclopedia
BC543 - Alcons Audio
Do-It-Yourself Cardioid Sub
Back to Basics: Directional Subwoofer Arrays – FOH | Front of House Magazine
Martin Audio Ltd - On #SubwooferSunday, here's 16 DSX in a broadside cardioid sub array for the recent socially distanced Gaia Summer Nights festival in Portugal with LVT Audiovisuais and MLA Compact.
Back to Basics: Directional Subwoofer Arrays – FOH | Front of House Magazine