You are actually boosting everything way too much! Stop It! Go and consult the Rumble Tone Pool, and do some research. Also take time to read through the various Rumble Talks for in depth inside information.
I hope you haven't damaged your woofers. Pull the grill off, and check each one for rubbing/scrapping of the voice coil. If that's the case, they need to be reconed. If they are good, be sure to re-torque each driver in a star pattern and don't over tighten.
And finally, are you a member of the Fender Rumble Club?
A visual inspection of the speakers doesn't seem to indicate any physical damage or anything that looks abnormal to my eyes. Should I be doing anything else to check?
Also yes I am a member of the rumble club. It's in my sig but I don't think those show on mobile?
Thanks for the advice (you and everyone)... I'll start taking it right away and let you know how it goes