Hello, I am hoping someone can help me who has more experience in the home audio department. I am a drummer and I use a Sony STR-DH130 2 channel hi-fi receiver (270 watt max). I am about to purchase a pair of Sony SS-F7000 200 watt (max) speakers. I was wondering if down the road I was to purchase an additional pair of Sony SS-F5000 150 watt (max) speakers, would it be a problem using 200 watt and 150 watt speakers together? The reasons for the question is, I play the receiver very loud (you can hear me outside my house) and I don't want to blow anything. Any info would be appreciated.