How To Set The Low, Mid, High, Sub, LPF, HPF On Sony Headunit?

Low , mid , and high are set to your taste .... but try to stay in the negative range on the low ... and try to keep it within +/- 4 on all of them .... other than that set it to what sounds good to you . LPF = Low Pass Filter and is the crossover frequency for your sub out . set it near 100hz and it will let any frequencies lower than that pass freely and filter out any higher freq. at the rated amount ..... HPF = High Pass Filter and does the same but opposite.... allowing higher freq. to pass freely. set near 125hz for most speakers and about 180-200hz for small 4" mids . the normal/reverse is changes the direction the sub moves first when playing a sound... and will not damage anything. may make them louder or sound better in some instances ... but most of the time does little .