It's a case of how transparent to make the grilles. The more transparent they are, the better the sound will be, but will show the black roll surround on the bass driver. The thicker the grille is made, the more it'll hide anything black behind it, but of course it then makes it less transparent as far as sound is concerned. With the T's being black all over, they're not like the Apex where they're white beneath the grille with black roll surrounds, so why not buy some acoustically transparent white material and just make a sock that covers the whole satellite speaker? Any black showing through will be pretty consistent.