In my opinion..say they use the equipment which is calibrated and eventful of graph showing the high and low but somehow it may not always be pleased to your ears(car owner). Why not ask the installer to tune to your liking, wouldn't that be better? Play the song that you are familiar then you can judge if that is the sound you like coz sometime to explain to installer how you want it to be tune can be difficult.

This post has been edited by newtoapple: May 25 2012, 10:56 AM

Well done..as for the bass I think you can adjust it yourself or ask the installer to do it.