Forgive my ignorance, but I'm relatively new to this and don't have an electronics background. I'm a good listener however, and appreciate any input. I have a Yamaha receiver, and just purchase two 25W Aura Base Shakers and 3 of the 50 watt ones. I plan on installing them to the wood frame in teh couches and under the theater seats. How do I hook them up? Do I need an additional amp or can I simply split my sub woofer output, and run one to my sub woofer, and the other to these "shakers". The technician lost me when he started talking about ohms and parallel and series wiring options.