After checking out JBL's website and watching their "What the..." video I had a fiew questions. They bring up power = current x voltage or watts = amperage x voltage. They said that typical car audio amplifiers work on a high current design at low impedance and that they amps have the ability to work on high voltage at higher impedances to give the same power and that the benefit is you dont need as vulky of a coil to handle the extra heat. I this true? I thought the heat was generated by the power running through it and not just either the voltage or current. This would give them absolutely no advantage when running under higher voltages at a higher impedance.
OK after a bit of reeducation I understand that current is the driving force as well as the source of the heat. So why are things rated in watts and not amps of output?
That is very interesting. And you know, they are right. We actually discussed the advantage of higher voltage, lower current amps from a distortion point of view in the George thread. Here's a quote by Dan, that fits this discussion as well: Steven Kephart Adire Audio
i have a question kind of related to this when you have one pair of RCAs going from your HU to TWO amps, using y-splitters to go to the amps, are cutting the voltage in half, or???
Essentially you're creating a parallel circuit, so voltage should stay the same. I believe you may run into problems created by the different input impedances to the amplifiers. I'm not sure as to the magnitude of the problem though, and it may work fine.
