I don't think that a 4 ohm speaker can hurt the amp if you're currently running a 2 ohm speaker. You will lose power if you switch to a 4ohm speaker.
There would be more of an issue if your system is spec'd to run a 4 ohm load and you are running 2 ohms.
Considering ohms law, the amp will deliver less power to a 4ohm impedance then it will to a 2 ohm impedance.
So the 4 ohm speaker will put less stress on your amp.
Last edited by Alero_1986 : 03-09-2009 at 07:48 PM.
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