I raised the 1x12 off the floor (it's on top of the 2x12) for now....
The 2x12 has tabs you can pull the grille off easily (I just fitted it's training bras ) but the 1x12...looks like a screwdriver job and I'm scared to :-/
It's a 1(?) inch thinck 5(?) inch diam. foam diffuser (on my 2x12) that filters the beaming high end from the cone centre...surprised at the difference such a little thing made on my 2x12
It appears the new one's don't have the tabs. I just left mine on and took off the back and reached through the port to check and I could feel it. I figured that was good enough! I was too whimpy to try and pry off the grill.......figure I'd bugger something up.
My 1x12 has the pull tabs ont he front but they are worthless. The grill is on WAAAAAY too tight to be able to be pulled off. I pryed mine off with a flat head screwdriver to take a look at the bra!