I was very excited to finally move away from my combo amp years to a cab....Well, I got a GK 4x10 blx II cab with the Backline 600 gk head. I was sooo excited...until I tried it. Well the Speakers have rattling and when you turn the head on the power light stays on Red for a while and then goes to green...hmm? So while Im playing on the clean channel the overdrive channel light starts flickering and then turns completely solid green [but no overdrive effect and while Im playing on the clean channel ] I will admit however minus the flaws, the rig gave great tone for the price, maybe I just got unlucky with my set up... But Im taking it back while I can and am buying an ampeg b200r combo amp! =D Anyone heard good specs about this ampeg product?