I guessed that was the issue, but he wouldn’t let me touch it. The tweeter definitely does not work, we have tested it in the other cabinet and read for resistance and it’s bad. He’ll find one on eBay eventually. They are great sounding speakers, and I hate to see them moved to the closet. I wouldn’t sweat it too much, the grills do seem to tame the amuminum dome a bit, but otherwise don’t add anything that isn’t asthetic or protective. And to some that taming of the tweeter may be a downside, but he already has bright speakers, cables, and other equipment, and it can be a bit Klipsch-esque sometimes.