Nearing the finish (no pun intended) line of my speaker project. I finished wet sanding the clear coat on the second speaker yesterday. For this final wet sanding, I started with 2000 grit and ended with 2500 grit (that was the highest wet/dry paper I had).
For the first speaker, I used Novus 2 (it's what I had; I really didn't want to spend more money than I needed to since I spent so much on paint) to buff out the fine scratches, then Scratch Doctor to polish out the Novus 2 scratches.
There are still some really shallow scratches if you look under direct light, but they're not really noticeable. I'll probably do a couple more applications of Scratch Doctor and then install the speaker components and call it good enough.
I'm doing this all by hand so it's taking a while and the results probably aren't as good as if I had a buffer, but whatever. I'll probably finish the second speaker today.
It doesn't come through in the photos, but the top of the speaker has some uneven paint lines under certain light, though it's not terrible. And I didn't do a great job completely flattening it, so you can see some waviness.
If I did this again, which I probably will at some point since it was fun, I'd use better tools/materials and make it perfect. But I did get that mirror finish which is what I was going for!
My phone camera does a terrible job picking up the color. I think I need to photograph it in natural light...