Question about power

[Question Mark]

Will an amp that run 1kW @ 4Ohms draw less current than one amp that spit's out 1kW @ 1 Ohm? I guess it will be more heatloss at 1 ohm. Ohms law says I=U/R. The lower resistance, the bigger current?

I'm looking to buy a bigger amp than I need instead of getting a bigger one when I will upgrade my system. So I thought that I could wire my subs higher so the voltage wouldn't drop as much?

[Zapanater]

Yep, greater efficiency and less distortion. Wiring higher is always a good thing if you can.

[HHR Ed]

Most likely the amp at 1ohm will draw more current as efficiency drops as the impedance drops.

But it depends on the amp and it's efficiency.

You may have a cheap, inefficient amp doing 1000w at 4ohms and it may draw more current that a good, efficient amp doing the same power at 1ohm.

So it very much depends on the amplifier quality and efficiency.

[Watch the bass]

Are they same amp class technic?

[Question Mark]

I was thinking of this amp. It's rated 5000W at 1 ohm, 2800W at 2 and 1500W at 4ohm with 86% efficiency at 4 ohm