LPF = Low Pass Filter, if u are going to use it for sub, use this
HPF = high pass filter, if youre goin to use it for speakers
Flat = if u want to use full range, like for 2 way coaxials
Hey just wanna hear ppl comments on how to mount the changer below the seat coz currently mine is hanging below the seat and it keeps falling on the floor ..... stupid feller ..... dunnno how to put .... go put like dis