Originally Posted by: dxt4dlnIt's an actual preset reverb for drums ("drumshine")

In that case, go check out these guys: http://www.strymon.net/products/bluesky/

On the right hand side of the page you'll see four videos, you're looking for the third that's called "Plate Shimmer Demo". The demo shows the effect at greater intensity as the video continues, so be sure to watch to the end. You'll really hear the "shimmer" effect in the last two examples. The Blue Sky Reverb is a great pedal, but there are other competitors out there that offer the same effect, so if this effect grabs you (which I think it might) keep in mind you do have choices. There are multi-effect units out that have the effect too, but if you were looking for a really high-quality dialed in sound, then a dedicated pedal is going to be the way to go. That effect would probably sound really great on your acoustic. Let me know what you think.