I am in the market for used gear: Do you guys think a Bag End QDX-10 410 speaker cabinet is worth $475? It can handle 800 watts at 8 ohms and 400 watts at 4 ohms. Do you guys think an Ampeg svt-200T head that puts out 250 watts max is worth $350? Do you guys think this is a pretty good match for head and cab combo? Can anyone explain ohms or give me a link to some reading material? I have no clue what the diffrence is between 4 ohms and 8 ohms.