I just purchased a Mark Hoppus signature bass and i have an ashdown five fifteen mini stack that's 100w with two 10" speakers. I can't seem to get his tone setting with his famous growl sound. I've tried every EQ possible. Maybe it's the strings that came with it or it's the amp. It just sounds muddy with some trebble. He uses an x3 ampeg SVT 8x10 cabs. Is there a pedal or strings that i can buy?