Amplifier And Speaker Ohms Questions

[chartman18 10+ year member]

My Infinity Kappa speakers (front and rear) are 2-Ohm Impedance, does that mean if I get a 4-channel amplifier, it (speakers and amplifier) would automatically be running in 2-Ohms? Or do I have to wire it into 2-Ohms?

Thanks. If it automatically runs in 2-Ohms, then that would be awesome for me without having to wire anything in parallel or something.

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[Prowler573 5,000+ posts]

You do not wire an amplifier to run at a certain impedence.

The load created by the driver(s) and the method in which said driver(s) is/are wired will dictate the nominal resistance load being presented to the amp.

That being said, the majority of amps are stable at 2 Ohms when in stereo mode so if you were to get a 4-channel amp all you'd need to do would be to connect the speakers to the amp. The amp will see a 2 Ohm load per channel and output whatever it is rated to output @ 2 Ohms each channel. (bear in mind that the 2 Ohm stereo output will be more wattage, obviously, than the same amp when shown a 4 Ohm load per channel so make certain that the power ratings at that resistance is suitable for your speakers)

 

[chartman18 10+ year member]

Alright, thanks for that man, that helped a lot.

 

[marshallb 10+ year member]

Your speakers are 2 ohm therefore asuming you have a four channel amp nothing to do but run them directly to the amp vola! 2 ohm load.