So, I'm running my 1050 with a 6.1 setup using the Boston Acoustics System 9000 with an extra match to the front left and right (Micro 90 maybe?) for the 6th channel. I'm looking at possibilities for an upgrade path to separates. Nothing immediate, but always looking ahead and never to early to plan, right? If I were to purchase say... a 7100, and put that in the system, how much would my power requirements change?
I know the 1050 loading would drop dramatically, even with channel 6 becoming 90 watts. I'm just wondering if the load presented by the speakers moved to the 7100 would be significantly more or not. I know the 7100 is rated at about 3x's the power consumption of the 1050, but should I just divide that number by 7 and then times by 5 for the new power loading? How do I calculate the new loading I should expect for the 1050?
Basically, I'm fishing for do I need to be using another circuit or not. Obviously, a second circuit would be ideal, but how imperative is it?