We have no clue without a picture.......which did not post.

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Sorry for that. I couldn't post the photo in the post

You mean the stereo stuff right ? I would try to do shelving to match the desk area if possible so maybe one more shelf at the same height as the desk top I would not add more shelving loaded with stuff . Personally I would have put the TV there on the wall with an articulating arm and the stereo stuff under it in a cabinet. We swiched out our speakers a few years ago to much smaller ones mounted in corners in the space up near the ceiling we still have one sub woofer but a lot less sstuuf to deal with on the floor . We also have a turntable that we use often