I sub in and out for a jazz band and their bass player has an elf also , I used his rig once and for some reason the sound he was getting was much cleaner and warmer than mine , I noticed he had the gain up at 3 O,clock , the bass up well past 2 o clock , and the treble , mids and volume down really low. Just used the volume for more, well volume. I tried this and got the same effect with my own amp. Just a funny setup but gave a great tone .