Price history & Review on 1pc Subwoofer Crossover Frequency Speaker Divider 300W Bass Woofer Crossover Audio Speaker Board For Passive Subwoofer Speaker | AliExpress Seller - I DO Electronical Store | Alitools.io
Where to Set Subwoofer Crossover (on AVR) Based on Speaker Specs | Page 2 | AVS Forum
What are the frequency settings for a subwoofer? I have a subwoofer with 4 different frequency settings. I need powerful, punchy bass. Should the setting be positive or negative? - Quora