Ive got heavy guage strings on my five string and it seems the top b string is distorting the amp, and im sure its due to larger vibrations as the string is so thick. am i right? ive bought some medium guage strings and will string em up soon so im hoping the distorting will stop then. any advice? Then again, my bass is active and im sure the preamp is just too powerful for me to harness. I also play through an MB30, so maybe theres too much power coming from the bass for th amp to handle?