Power at different impedence

[pervertatoid 10+ year member]

I'm honestly not sure where to stick this thread, but I guess the amp section is as good as any.

Is there a way to calculate the RMS Power at a particular load?

For example, an amp is listed as pushing 1200w @ 1 ohm, 900w @ 2 ohms, and 450w @ 4 ohms. What if my wiring configuration gives me 1.33 ohms of resistance?

Is there a way to calculate that based on the other rated power levels?

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[pervertatoid 10+ year member]

*Bump*

 

[jonnybusa 10+ year member]

I'm honestly not sure where to stick this thread, but I guess the amp section is as good as any.
Is there a way to calculate the RMS Power at a particular load?

For example, an amp is listed as pushing 1200w @ 1 ohm, 900w @ 2 ohms, and 450w @ 4 ohms. What if my wiring configuration gives me 1.33 ohms of resistance?

Is there a way to calculate that based on the other rated power levels?

pretty much just do math, and guess......1.5 ohms would be around 1050w, so 1.33ohms would be around 1000watts+-

 

[helotaxi 5,000+ posts]

Power vs. impedance isn't a simple linear progression. Also it would appear that your amp doens't advertise double power into half the load making any kind of actual calulation impossible since the power output does not follow a logical progression in relation to load.

The best you can do is guess. It will be somewhere between the 1 ohm number and the 2 ohm number and *should* be slightly closer to the 1 ohm number.