AV Receiver Set Up Guide: Setting Crossover, Distance, Level, and EQ | Audioholics
Monoprice Monolith THX Certified 8in 150-watt Powered Subwoofer, Deep and Powerful Bass, Compact Design, Quick and Easy To Setup, For Home Theater or Gaming Systems - Walmart.com
Subwoofer Crossover 80hz or 120hz? [What the EXPERTS Recommend!]