How should I set up my subwoofers? Three ideas to consider.... - Carvin Audio
Subwoofer Arrays - Amate Audio
Do-It-Yourself Cardioid Sub
Review: QSC KS212C Cardioid Subwoofer - Church Production Magazine
Back to Basics: Directional Subwoofer Arrays – FOH | Front of House Magazine
Moving Target: Inside Applying Delay To Subwoofer Arrays - ProSoundWeb
Do-It-Yourself Cardioid Sub
How do you calculate cardioid subwoofer spacing? (gradient array) - Sound Design Live
Directional Subwoofer Arrays: A Practical Approach - EAW: Eastern Acoustic Works
BC543 - Alcons Audio
Simple Cardioid Sub Setup - YouTube
Understanding 2-Element Cardioid Subwoofer Arrays – Between The Lines
cardioid subwoofers | Bob McCarthy's Blog
How to correctly position multiple Subwoofers for Cardioid Deployment - Live Sound
AES PNW Meeting Report - A Cardioid Subwoofer Array - Theory vs. Practice
Subwoofer Arrays - Amate Audio
Passive Cardioid Technology | Fulcrum Acoustic
What is a Cardioid Subwoofer? Why Do I Need One?
QSC Introduces K Cardioid Single-Box Powered Cardioid Subwoofer | audioXpress
Cardioid Subwoofers — Bob McCarthy
File:Cardioid Subwoofer Array.png - Wikipedia
Subwoofer Arrays - Amate Audio
Phase Wavelengths: The End Fire Cardioid Array made visible — Bob McCarthy
QSC KS212C - A Festival bass array in a box! - Westend DJ Blog
