Hi, I've had my GBE 500H for a while now and I love the sound and power. I bought it used and I've noticed that the clip light goes off really easily at low volumes. When I have it going at 4 ohms to a 2 cab stack the preamp can clip when the pre fet and tube gain are at about 3/8 and the master volume will clip at around 3/8 as well. There is a noticable clipping comming out of the speakers when the clip indicator comes on. My Bass is a Lakland 55-01 and I'm going through the active input. I'm just wondering. I know this has a tube pre-amp and I've never changed the tube. Could that be my problem? Using a compressor pedal helps stop the clipping but the pedal takes away a lot of my bottom end and is a pain in the butt in live situations when I need to constantly change my dynamics. Any other suggestions or similar experiences?