Understanding series/parallel help please

[ultimate157 5,000+ posts]

Well that statement alone is false as you can have more/less heat with the same amount of watts in but it would have to be a radiaclly different amp design or a different power source (which wouldn't exist anyway which I guess makes my post moot)

I'm talking strictly across a conductor.

 

[Bun-Bun 10+ year member]

I'm talking strictly across a conductor.

If just a conductor and (which assume the load to the source stays the same) then if you apply a higher voltage with less current for the same power then you will have less power loss (heat). As shown with my mains power example.

for example...

200w power source. 1ohm conductor. Lets say we apply a 20v source with 10a of current. PL = I^2*R so 100w loss to heat.

Up the voltage to 40v then only 5a is needed for the same 200 watts then PL = (5)^2*1 or 25w loss to heat.

But that doesnt apply to speaker wiring as to wire the same power you have to change your coil resistance (or your load changes and the amp would put out different power). As Helo was trying to make clear to me... sometimes my brain gets stuck having been out of school for awhile lol.