Connecting SUB - High/Low Pass Filters not working.

[strummer]

I'm trying to connect a SUB.

I've set the Pre-Outs with Low Pass Filter at 100Hz

I've set the Speaker with High Pass Filter at 100Hz


I'm using a test tone CD. The Speakers are going well below 100Hz & the SUB is going above 100Hz, in fact they both appear to be getting Full range. The Filters don't appear to be working.


Both set at 2nd Order BTW, which is what they were already set at.


Am I missing something?


Thanks