inputs.text: solid punch little package - cars full sound systems goal always quality not high volume booming bass not satisifed factory system new car didnt want put lot money alpine deck rockford fosgate amp lying around previous installs installed finish purchased midpriced front speakers sound quality certainly improved noticeable lack bass since didnt want typical big sub trunk decided try pair rear doors didnt 4 channel amp picked passive crossover route frequencies sum cant adjust bass level relative front speakers speakers running free air doors no enclosures yet still make big difference still no noticeable bass lower regions music much punchier doesnt sound hollow anymore ive happy purchase imagine theyd even better proper setup