I know that you can get some pretty good tones of a pair of mismatched speakers in the same cabinet, but what about 2 different sizes, i.e. as 12 mixed with a 10, or even a 15 mixed with a 12. I was digging around down in a dark corner of the basement and came across an ancient JBL D130-F that I had reconed a few years back, stuck in the corner and promptly forgot about. I've got the skills and tools to do the woodworking, but was wondering what it would sound like with that JBL and a G12-H or similar. Anybody ever try it?