I have an ampeg 410 4ohm cabinet. Previously, I had it paired with an SWR 350x. I had to sell the SWR 350, but now I need to purchase another amp. I want to go with a power amp and eq combination, but have no idea where to start as far as wattage for the lead sled. I want something I can use with my current cabinet, but something also that I can use in the future with a 6x10 or 8x10 without having to upgrade. My current bass is a lakeland 55-01 skyline with MK-1 pups and Bartolini NTMB preamp. What brands are the best?