adjusting controls on amplifier?

I just installed amp & sub woofers...and it just doesn't sound right!  I have read the intructions on how to adjust the levels, but I just get more confused *** they're not written beginner friendly at all.

So if someone can explain to me what these controls do, what I should have them set at, and how to adjust them properly I'd very much appreciate it!!!!

1. What is HPF and LPF? I know it stands for "High Pass Filter" and "Low Pass Filter", but what that means exactly I don't know!

2. On my amp I have a switch labeled "X-OVER" that has three different settings "HPF", "LPF", or "FULL". I don't know which setting to use.  I know it works with question 1, but again I don't know how to set them correctly.

3. On my amp I also have a switch labeled "MODE" that can be set on "Stereo" or "Mono".  I have it set at Stereo for the fact that it is a 2 channel amp and it is connected to my 2 10" speaker box. I may be wrong but that's how it looks like the manual is telling me to connect.

4. My "BASS BOOST" is switched to "On" for the fact that's what I'm using it for (Bass Only).

5. On my amp there is a control labeled "LEVEL" and in the manual it states it's the "Sensitivity Control". What does that mean and how do I set it to get the most Bass?

Well, that about covers it.....I hope someone is willing to take on the challange!!  If you do decide to answer, please keep it as simple as possible......I confuse easily  !!!! 

Thanks

In carrying out what reax222 has suggested, you should:

• determine the impedance of your subs when combined
• look at the amplifier manual specs page to see what impedance is listed for spec under the "mono" configuration.  That will be the lowest acceptable impedance you can load the amp with.

Well, I found & read the thread "How to set your gains"  and I'm still confused!    I'm sure it might be helpful if I knew what to set the controls at before I tried to set the gains!!!!

As mentioned in original post I am confused about which settings I should set my amp.....

1. Should the switch labeled X-Over be on HPF, LPF or FULL?

2. Should the switch labeled Mode be on STEREO or MONO?

I have my amp hooked up to power my speaker box only (just for Bass)!!!! It's a 2ch amp, my box has 2 10" speakers (2 wires from back of box, so each speaker has it's own L/R wire.)

If someone could advise me on these two questions I may be able to move on and try to adjust the gains.