I have floors speakers with 12 inch woofers with a max ouput of 120 watts rated at 8 Ohms. I thought the Yamaha RX-A830 would be powerful enough to produce deep bass on my speakers. However, I'm just disappointed as the bass was no better than my Onkyo TX-SR 313. Am I missing something here? Is this a configuration problem on the receiver? I'm using 12 gauge speaker wires for the speakers, am I using the wrong gauge? My friend has a similar setup and his speakers produce incredible bass to the point where you don't need a subwoofer.