inputs.text: finally another review - installed jbl ms bass pro 2006 acura tsx factory stereo installed noticed bass started coming sub car not even turn volume sub way stop humming called jbl not know problem stated sub not give sound car keys ignition car started turn gain way not loud humming bass tone coming sub not want ship unit back jbl recommends send brand new one putting problem aside surprised loud little thing sound pretty impressive something small however not expect thing hit 20hz like states specs frequency response bass cd test tracks lowest frequency able get thing 30hz played around settings month still no luck getting hit lower frequencies problem small rolls around trunk easily since trunk drive slow around turns not roll around much find way strap drive normally no not speed demon pain drive around corners slow piss people behind good thing little sub loud size looks nice clean jbl good job making thing look nice installation easy well ran 8 gauge power wire battery trunk 8 gauge ground wire existing ground point vehicles chassis also pay attention price amazon jump got bass pro month ago amazon costs 40900 time wish would hit 20hz jbl supplied something strap try create another ground point car see resolves issue loud feedback getting sub not issue would easily give product 4 stars pain ass start car go trunk turn gain every time want bass