[timind]

You need a little ventilation at your workbench.

[IronLion]

Or wait that isn't a speaker maybe...

[SP Cabmaker]

I see a power on/power off symbol on a button inside the speaker cabinet, not on the crossover itself?

No power on/power off button inside the cabinet.  What you are looking at is the tweeter's filter network and most likely the bolt heads that mount the tweeter to the waveguide.

[SP Cabmaker]

Ok, yes....you see the back of the tweeter!!!!