Reading some of the replies to this post. Speaker Wire In Wall
I got to thinking about what I always took as marketing more than science.
The use of 14, 12, and even 10 AWG monster cable for speakers.
I have been "house electrician" for over 100 rock, rap, rave etc. shows, and in that time I do not think I ever saw the sound crews using larger than 14 AWG and 16 AWG was not uncommon for runs from amps to drivers (speakers).
The normal situation would be 800 to 1000 watt per channel amps feeding one to four drivers per channel.
They was no problem with bass response with this setup.
So is there any science to back up that I need anything larger than 18 AWG for speakers in a normal house or car audio system or is it just marketing "Bigger is Better"?