Hey there... need some help... A real newbie question... Need to know EXACTLY what these do: BASS CENTER FREQ TREBLE CENTER FREQ SUB FILTER SUB PHASE (2 choices...I assume just reverses the phase of the sub?) BASS Q-FACTOR LOUDNESS (used to just boost everything, but now there's like 4-5 settings to choose from... WTF) I used to install high end mobile sound 20 years ago, but things have changed a bit since then. Maybe these just are called different things now. I just put in a Phase Linear UV7 (same as Jensen) with a sealed JL-W3 and a 350 watt mono amp, and a set of Polk 5-1/4 separates with 100 watt x2 stereo amp. Sounds like CRAP right now, until I understand how to properly split my highs and low, and what the other controls do exactly. Not looking for what your system is set to, but rather an explanation of each so I can understand exactly what I doing. It's been a while. Much appreciate any help. Thanks, Ed