cheap watts vs. expensive ones

[bassl0va]

This is a pic of an experiment I did. It was a DUB 10" running free air off a 1980s Technics amp. Check out the ohm load changes at the different frequencies. It was wired to 4 ohms.

[jesterjames]

Well yes, different woofers and different wiring configs of multiple voice coils will yield different resuts.

But even on the same woofers, 2 amps of the same power, that are outputting different volts and amps, would translate to different SPL results.

There are many different amplifier topologies and designs.

An amplifier can be set to amplify a certain input voltage to a certain output voltage, and its most often thought that this cannot be done with the current, that current draw is just dependant on the impedance of the load. But its also dependant on the voltage, and the current capabilities of the amplifier devices and design.

If you upgrade amplifier components to handle more current, you can draw more current and receive more power.

Not all amplifiers are created equal, some may now amplify voltage as greatly as others, but they may have components with very high current capabilities.

And other amps may be designed to boost voltage a great amount, but the components are not capable of much current.

Then you have things like dual mono amps that are 2 boards in one case, they may be series bridged internally, or parallel bridged. These 2 options will determine output voltage and current capabilities, but can yield the same power.

Audio Amplifiers are rated in watts, not Voltage... Im still trying to understand how you think OHM's law doesnt apply to them.

Like i said already, OHMS law doesnt care what you paid for the amp. It is a LAW of electricity. 1500wrms from a RF/Sundown/whatever = 1500wrms from a Hifonics/whatever at 1 OHM.

Watts = I(Amps) x E(Volts)

Amps = Watts/Volts

Ohms = Volts/Amps

See how they all go together... a watt is a watt.

[BobbyG2]

When talking about "dirty" and "Clean" power, the amount of watts doesn't matter, it's the consistency.