Amplilfier wiring

I don't know if this is the right NG to ask about the following:

I have a Sony DAV-FX500 5.1 home theater now installed which works very well
for our fairly medium sized room. I was surprised to see the wire size to
four of the speakers as small as it is. The wire size to the two front
speakers and the two rear speakers is #22 and to the woofer is #16.

I am considering changing out the #22 wire to #18 wire. I am wondering if
the
benefit would be worth the trouble.

Amplifilier output specs are:

For each of the four speaker amplifier outputs: 84 watts, with 3 ohms
impedance each.

Woofer amplifier output: 160 watts, with 1.5 ohms impedance.

After thought: Just thinking, would the #22 wire resistance be there by
design because of the fairly low amplifier output of 3 ohms?

Thanks,

Dave C.



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