I took delivery of my brand new Peavey Combo 115 2 days ago, it sounds amazing, especially with a lead guitar Before I bought it I noticed on Peavey's site that it has a rectangular hole, about 4" by 6" to the right of the main woofer. You can just about see it on the picture below: I'm not sure what this is for. Could I fit a horn tweeter to it? Or is it just because my amp uses the same mounting board another amp that does have a tweeter, and PV are just mass producing them? The TNT and TKOs both come with 1" circular tweeters, which leads me to believe that I could mount one if I wanted to. Could anyone help?