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post #1 of 7 Old 04-18-2007, 11:43 AM - Thread Starter
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I currently have an HTIB (5.1) Onkyo, forgot the model number. I was planning on replacing the speakers however I had one question concerning ohm impendance-- would it be okay for me to replace my center speaker to a speaker that has an impendance of 4 ohms, while my current speaker has an impendance of 8 ohms?

I tried reading up on this but it's all Latin to me... I'm more of a videophile I guess. Thanks for any help or explanations you can provide.

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post #2 of 7 Old 04-18-2007, 03:53 PM
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An amp that comes in a HTIB probably isn't stable enough to drive a 4 ohm load. It could overheat and either shut down or damage itself driving such a load.
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post #3 of 7 Old 04-18-2007, 04:06 PM
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Need more info. You might be OK if you have the 100wpc Onkyo and the 4 ohm center in question is very efficient / has small drivers, and the power handling requirement of the center is minimal. My 6 ohm 3" boombox speaker requires 5 watts.
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post #4 of 7 Old 04-18-2007, 04:49 PM - Thread Starter
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Hmmm... well the receiver I know has 100 watts pc. I was looking into getting the Polk CSi25--they're having a sale right now 59.99, I was planning on pairing it up with two R300s and buy a sub later on. Thanks again for the replies !

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post #5 of 7 Old 04-18-2007, 04:51 PM - Thread Starter
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I'm on a tight budget but I'd like to upgrade my speakers for now...something decent within 3-4 hundred bucks on a 5.1 speaker system.

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post #6 of 7 Old 04-18-2007, 06:57 PM
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I'd go ahead with it. In my small TV room I'm using an older Sony ES receiver rated at 100 wpc to drive some Polk LSi 9 speakers rated at 4 ohms and I'm not having any problems. In the future you can upgrade your receiver to compliment the more power hungry speakers.
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post #7 of 7 Old 04-18-2007, 07:45 PM
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It hasn't been mentioned yet, so, if you x-over your center, you will put a significantly less load on your receiver. Of course, that also depends at which freq you x-over . . .

 

 

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