Im having trouble with my Fender Blues Deluxe ReIssue being able to use outside. It starts out nice and clean and loud, then about the 3rd hour it starts distorting like its on overdrive mode. The overdrive sounds great on the rock tunes, but I can't clean it up for the country tunes. I run my master at about 7 and my channel volume at about 3 or 4. Im using a compressor if that makes a difference. Last night we didnt mike anything playing outdoors (a small patio setting), but I have miked before playing outside and the results are the same. I thought about adding a 112 ext cabinet, but not sure if that will help anything. What are some other options?