ohms and watts

Hi! Comparing two amplifiers, one rated at 2000 watts with an impedance of 0.5 ohms and another rated at the same power but with a 2-ohm impedance, I am curious about the impact on the electrical system. When considering these options, does the load on the electrical system differ between the...

I'm having a hard time understanding how Ohms and watts are affect the quality of a sound system setup. For example, what is the difference if you run a speaker that is 4 ohm and 300 watts RMS with an amp that matches the ohms and RMS watts per channel, vs running that same speaker at 2 ohms and...