Hey, guys just a question for all the "gurus" in this forum. I'm wiring up my family room with in-wall speaker wires(CL3 rated, 12ga.)and I have an old HK325(5 ch) for my surround with a multi-room feature. I read some article saying that you need an amp to power this extra speakers? It didn't mention any need for an amp in the manual and I'm just adding a pair of outdoor speakers for this feature. Would it overwork the receiver if i don't add an amp? Appreciate the reply.