Sparingly used due to covid, Literally never pushed. Used for low end audio feed from video walls when used. Includes Poles and covers. QSC KW181 active subwoofer packed a 1,000-watt, Class D power plant into this sub's premium birch enclosure, and very effective onboard DSP lets you get the absolute maximum out of its 18" speaker. You'll love the connection and control options on the KW181's back panel. You'll also love the fact that this sub is built for the long haul. You won't believe how much beef this outstanding subwoofer adds to your sound!