Eliminate phase problems!
30:10
Subwoofers (and the air itself!) are NOT in-phase with your mixer and amplifier.
8:01
How To Eliminate Microphone Feedback | 5 Must-Know Tips
59:25
Martin Audio Low Frequency System Design Webinar
8:36
Is doubling speakers +3dB or +6dB? What's parallel and series wiring?
8:53
RCF - Subwoofer Alignment - Reading the Phase Slope - Part 1
23:22
Speaker Placement Basics For Small Concerts, DJ's, and Portable Churches
15:11
NEXO Cardioid Subwoofers Part 1
8:53