Sounds pretty close to my set up.. Only I STILL don't have a real sub..
Now, the coffee table.. I just read where that is one of the worse things you can do to a sound system.. The report stated that it really messes up the timing with regard to the sound waves reaching the listener... They bounce off the table and bounce under it, and in so doing, reach your ears later than the direct radiating waves.. Other than taking the table out of the middle of the room, it would appear you need to replace it with a soft surface ottoman type foot stool..
I've got a sold slab of marble, sitting smack in the middle.. The thing must weight 70 plus lbs.. Now they tell me I HAVE to MOVE it ?? That's just great.. I thought I was all done with tweeking when I installed the left-handed signal shifter ??? Sheeeeeeesh...
Those M80's are someting else.. I need to go find a bigger amp ?? hahhaaa


LFE ! The rest is just details..