Great sub! -Cab measures 21"x22"x25" and has an 18" speaker. -131db peak. -Powered by 500w high efficiency D-class PA with built in limiter. -No cables included. I haven't needed this piece of equipment for a couple years. Have been reluctant to get rid of it but it's taking up to much storage to justify keeping it any longer. See below for link to manual. English version starts at page 9. https://www.manualslib.com/manual/895490/D-A-S-Sub-18a.html?page=9#manual Serious inquiries only please.