i currently own a GK backline 300 and an SWR Goliath III. I'm considering selling the Goliath and purchasing a small 1x12 (bought the Goliath for rock and now have been focusing a lot more on jazz). Should i just sell the whole rig and buy an AI Contra? if i don't sell the whole rig, what kind of pickup do you guys recommend for it? I'll be playing jazz in small-medium sized venue for a while.