inputs.text: powerbass entry level - compared say alpine type ethey blow balls subs suck 9 mm xmax means peak power move dribbly total 9 mm used 600 watt rms diamond audio d5 6001 alpine type e blows better dont get loud tried sealed poerted vented evean old dual bandpass boxi chose found powerbass xxxl components speakers thought would stick brand singular rockford p3 12 would hit better maybe even jl w0 yeah said w0 subs 59 dollars reason