I sewed up the seams of my old speaker box while I had it out. I've got some pics here. From a distance it looks pretty good, but close up it'* not as good. Any suggestions to cover up the corners where pieces meet and are sewed together?

Is the amp rack and the boxes all one piece ro no. I always try to have the seams fall in the middle of the box. Then I use staples to hold the seams together so they wont stretch apart. Then remove them together. But the only other thing I could suggest would be carpet seam tape. Its a real thin double sided tape. Your corners wont look clean but itll hold the carpet down and look better.

put some buffed L beam over all the corners.

i agree with corvettecrazy

some nice crome or buffed alumanum l beams

use the L beams and do the entire box edges it would look really sharp and clean!