MTX Electronic crossover question

[Robcrx]

Anyone familiar with MTX electronic crossovers ?

My question is regarding the sub level.
I have the external bass control hooked up which works well. I notice the actual "output level" knob on the crossover itself doesnt make any difference when adjusting it..
Does the external sub level control over ride the output level knob ?

HERES A PIC OF WHAT IM TALKING ABOUT:

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[Robcrx]

Setting gain on my amp... confused

Ok.. this is a bit confusuing, or the owners manual is wrong.

I'm using this Zapco z300c2 in mono, for my sub.
I wanna set the gain correctly, but the manual says to turn the headunit to minimum low level and set the gain all the way clockwise and then back off a bit till it clips ?? Isnt full clockwise full gain already ? Or is the manual wrong ? It should say 'full counter clockwise at first no ?

I was always told to set gain, you need to put the source unit 3/4 volume and turn clockwise and bring the gain pot up slowly ??

Heres what the manual says:

AMP: (only left gain control is used)

 

[Perry Babin]

What's important is setting it to the point where it's not clipping. 50/75% isn't really important. For head units with a loudness contour, many people don't like going beyond ~50% because the bass starts to drop off (compared to the rest of the signal). This may be why they chose 50%.

 

[fongman]

This will only work if you don't use the external bass control. You can not adjust them both at the same time.