I have a 4 ohm Marshall bass head, 200 watts. I wanted to get an Ampeg 2x10 and an Ampeg 1x15 but don't have very much $. I want to get a Carvin 2L210 and a RL115 to stack, a cheaper route. The website says that the 15 is 8 ohms and the 2x10 is 4 ohms. Is there any way I can use both of these with my head and not damage it? p.s. It seemed kind of wierd to me to see a 2x10 that is not 8 ohms. Did I read the specs wrong. Any help would be greatly appreciated.