Below, is from of our discussion at DHC:For our purpose here, let's take jimbo1421's receiver value and do the exercise to see what kind of an improvement he would get with 12 gage versus the included 18 gage cable assembly:
[snip]
this means your gain for using such a larger wire is only a difference of 0.20 db loss. Not even a1 db difference! NOTE: You need to approximately double the db rating in order to experience a small increase of about 10 watts. Can you imagine, we are pretty far from this result. When Polk's engeeners developped the bar I would imagine they did consider that the cabling being so short was playing in their favor and thus not requiring such powerfull drivers nor receivers to accomplish the task!
jimbo1421, your receiver is actually more of a threath to damage your SB being underpowered compared to a receiver with much more closer match since the distorsion spikes coming from the receiver can be very harmfull to your receiver. In order to operate the SB safely with your receiver, it shouldn't be powered that much more than let's say 1/2 power. If you like the Yamaha, the HTR-6160 (
http://www.yamaha.ca/av/PDFs/Receive...0_Brochure.pdf ) and above (
http://www.yamaha.ca/av/PDFs/Receive...0_Brochure.pdf) would be a good match for the bar and your overall set-up. I personnally think the RM series (which the SB uses the same drivers)