The fabric wont fix the reflection problem. If it does anything at all it will absorb certain frequencies and possibly lower the speakers volume at the
LP even more. Which is the problem in the first place. I have a similar set up and I made a custom platform for my TV and the center channel sits in but the speaker is at the edge of the equipment rack and tilted up toward the LP. It makes a big difference in clarity and volume and it looks good to. The platform is also a pedestal design without walls so it wont cause sound problems and the tv looks like it's floating because you can see through it to the back wall from several seating positions.
LP even more. Which is the problem in the first place. I have a similar set up and I made a custom platform for my TV and the center channel sits in but the speaker is at the edge of the equipment rack and tilted up toward the LP. It makes a big difference in clarity and volume and it looks good to. The platform is also a pedestal design without walls so it wont cause sound problems and the tv looks like it's floating because you can see through it to the back wall from several seating positions.