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Old 04-23-2007, 11:21 PM   #1 (permalink)
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Can I substitute HK speakers for standard speakers?

My E46 sedan has the non premium stereo. I just bought the car cheap and 2 speakers are blown. I found a deal for a complete set of Harmon Kardon and replaced the 2 bad ones. Appears to be fine, but the original are 2OHM and I can't find out what the HK's are? A friend said I might damage the amp. Any input?
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Old 04-24-2007, 05:07 AM   #2 (permalink)
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If they are 2 ohm (and that is what the orignal speakers were) or numerically higher, you will be fine. What your friend is talking about is some systems use a 4 ohm speaker, and if you install a 2 ohm speaker in its place, you could damage the amp. What happens is by installing a lower ohm speaker, you "force" the amp to deliver more power than what its designed to do, therefore damaging it. You should be able to take your speaker to any autosound store and they can check it for you. If you have a volt/ohm meter handy, I can walk you through doing it yourself. Hope that helps...
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Old 04-24-2007, 11:50 AM   #3 (permalink)
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"sclm" That Is Funny!
Thanks For The Input, I Already Replaced Them So We Will See.
Makes Sense What You Are Saying Though.
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Old 04-24-2007, 01:08 PM   #4 (permalink)
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It's kind of dangerous to say "so we will see." It is easy enough to check the impedance using an ohmeter. Just make sure it is 2 ohms or higher, and you should be fine. Otherwise, you "will see" how your amp overheats and eventually stops working.
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Old 04-24-2007, 02:26 PM   #5 (permalink)
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I just got some new door panels, and they are designed for the HK speakers from a 328, my stock nokia ones dont fit. So I just need to check the OHM's, to make sure the HK's will work?
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Old 04-24-2007, 08:28 PM   #6 (permalink)
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Yup as long as they are the same or higher impedence (ohms), you'll be fine.
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