1)Replace you car head unit with something that has more features as stock car head units are really boring.Upgrading your car head unit will increase sound quality by 36%.Stock car stereos have loads of distortion when you turn the volume to the max level,as they really can't handle abuse.There are many brands to choose from so i suggest that you check the reviews before buying a new cd player for your car.On most aftermarket car head units have extra equalizer settings than lets you control bass,treble and midrange frequency's without using a passive crossover which is great.Make sure you don't overpower or underpower the speakers as this will only result in the end with blown speakers with burnt out voice coils.
2)Buy a little cheap small amplifier that matches the rms watts and ohm impedance load of the speakers its usually 4 ohms.You will get better sound quality and more loudness know as sound pressure just by adding a small external amp without changing any speakers.The only thing is you need to buy a wiring kit and that costs a fair bit plus you have to rip your car apart to install the amp.Buying a car amp can help stop crackling noises and background hissing.
3)Get hold of a screwdriver and take you cars door card off and get access to the speakers screws.Get the screwdriver and tighten the screws nice and tight.This stops the chances of excess vibration that destroys sound quality for any audio enthusiast.The car door acts like a enclosure and works in a similar way just like a mdf subwoofer box made out of wood for subs.
4)Get hold of a cheap sound proofing kit that contains sheets of stick on material that is applied to the inside of your vehicle,typically used for deadening sound.This is the cheapest solution to grab some extra sound quality for a small amount of money instead of buying a amplifier it should to the trick.
Tags: active audio best bluetooth bookshelf buy cable car ceiling cheap cinema computer creative desktop dj fi floor floorstanding for hi hifi home in infinity jamo jbl kef klipsch laptop logitech loudspeaker loudspeakers mini mission mp3 multimedia outdoor pa pc portable powered sale satellite small sound speaker speakers stand standing stands stereo stereos subwoofer subwoofers surround system systems theater theatre tv usb wall wharfedale wireless yamaha