What is the difference between 2 or 4 ohms and which one is more powerful?

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Others already pointed out that resistance - not power - is measured in Ohms. The lower the resistance, the more power the load on the source. Think of it as of a pipe - the greater the diameter the more fluid will flow, and the more power the pump will need to produce to maintain the same pressure. Here is the formula: Current = Voltage / Resistance. Current here represents fluid flow. As you can see, the lower the R - the greater the flow. You may also find formula helpful: Power (Watts) = Current * Voltage. To make it simple, when R increases, Power decreases BUT these values have a direct reverse relationship meaning twice R corresponds to 1/2 Power. At the same time, when Current increases, Power increases as well BUT these values have exponential relationship with a coefficient of 2. In other words, if Current doubles, Power quadruples. Overall, lower Resistance means more Power consumption.

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An ohm is a measurement of resistance. The more ohms the more resistance, so to over come the resistance you need a more powerful amp (or different speaker configuration). You can run a less powerful amp on 2 ohms.

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The ohm is a unit of electrical resistance. Its value does not in itself represent power. It would be improper to state that 4 ohms is either more or less powerful than 2 ohms. It is like asking if 4 pounds is more powerful than 2 pounds. I hope this helps.

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Hi. What would be the output change from my 4ohm two channel 100 watt rms amp.?

First of all I imagine you're talking about speakers. Ohms is resistance so you need more power to drive a 4 ohm than a 2 ohm. Usually higher quality speakers are higher ohms (4, 6 or even 8), but you need a more powerful amp to drive them.

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Any one know any goog sites?

4 ohms is twice as much as 2.

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i thought the lower the ohm on subs, the stronger the bass?

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Make sure your amp is stable at 2 ohms. If not, run 4 ohm speakers or you might let the smoke out.

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Subwoofer Control for PIONEER DEH-P590IB PREMIER?

Part of the key is the speaker's Ohms rating combined with the sensitivity rating, not just the Ohms rating itself.

I just got a new 10" subwoofer, and now need to build a vented box for it. Can anyone help with the design?

i.e. a speaker with a rating of 4 Ohms/86dB sensitivity will require more power (higher current capability from the amp, e.g. like 45 amps peak/channel) to produce sound at the same volume level as a speaker with 4 Ohms/90dB sensitivity.

Right channel doesn't work on my car speakers when a CD is initially played and after a little usage of radio.

Speakers that are less than 8 Ohms benefit from amps that can handle higher currents before clipping. Many of the cheaper amps (especially in receivers) deliver the voltage, but can't deliver the current (amps) to drive 4 Ohm speakers without clipping.

What size amp do i need to run 2 10" subs in my car?

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I took my mustang 01 mach 460 6 cd stereo apart now i need help?

the above was coppied from a speaker forum. a 4 ohm speaker requires more power than a 2 ohm. that doesn't mean it will always sound better or louder. there is a lot of good articles on speakers if you search the internet. clipping means the amp cuts off because it can't handle the power needed and it heats up too much.

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What can I say? They have said it all!.

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