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  1. Home Audio Subwoofers
    I'm looking to add a sub to my collection, all of my other subs (4cs ultras, 2 18" fi sonosubs) I xover at about 23hz because I want the room pressure but don't care for the sound. My mains are polk rt 55's--which I xover at 120hz so I don't have anything playing from 25hz-110hz. I know I don't...