Ok, my 1998 eden metro combo 210 puts out 2 ohms. The combo cabinet has two 4 ohm 10's built in. They plug into the amps backside in one of the three speaker outs. Can I safely daisy chain two 8 ohm cabs off one of the other speaker outs? Sorry but ohms confuse me at times. I'm certain one extension cab is fine, but not sure how the ohm load will change if adding another one. Thanks!