eric wrote:Good point.. I believe that only In tube amp power sections, a mismatch in impedance, will affect volume and headroom, but in solid state amps, ohms WILL affect the output .. Is that correct Hippie?
strumminsix wrote:I'm not sure what is debatable. Per http://en.wikipedia.org/wiki/Ohm%27s_law
I = V/R
where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.
That can also be extrapolated to use Watts or Power. But always the same - the resistance lowers. Mathematically, ceteris parebis that going from a 8ohm to a 16 ohm will cause your output to decrease by half.
eric wrote:My original question was a bit vague I suppose. I was trying to clarify some stuff I was reading on TGP.. And I've read through a ton of the subject on here, but...
1. A 40 watt amp with an 8ohm power rating+an 8ohm speaker is exactly as loud as a 40 watt amp with a 4 ohm rating and 4 ohm speaker? YES
2. The mismatch in a TUBE amp's recommended rating+ speaker, will always result in less output. NO. lower ohms than the amps spec will result in higher watts and higher ohms will result in lower watts
The same mismatch in a SS power amp will always result in more output no matter the direction? NO. It works the same with tube or SS amps.
But in a solid state amp , that can safely run @ 4,8,16, changing between different speakers with a 4,8,16 ohm rating with say a single 1x12, will produce different outputs, respectively. YES
How is this? Does anybody see what I'm asking?
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