Polk CSM impedance question
Mon40CSMM10
Posts: 161
I've been using the Polk CSM as a center channel for quite a while now, and it seems to be a good match with the other speakers I am using for the front and surround speakers.
I did have one question about the impedance, since the specifications state this is a 4 ohm nominal speaker, compatible with 8 ohms.
Exactly how is this compatibility established with something a receiver that has both 8 ohm and 6 ohm settings?
I did have one question about the impedance, since the specifications state this is a 4 ohm nominal speaker, compatible with 8 ohms.
Exactly how is this compatibility established with something a receiver that has both 8 ohm and 6 ohm settings?
Post edited by Mon40CSMM10 on
Comments
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Speaker impedance varies with frequency, and CSM must have some range or ranges where it dips significantly below 8 Ohms, and others where the imp is probably significantly above, so Polk labeled it 4 to be safe. It is nothing like a "true 4-ohm" speaker such as say LSi9, which an average receiver would have trouble with.
A receiver with a 8-6 or 8-4 ohm switch simply limits output (to protect itself) while in the lower impedance setting. It has nothing to do with "matching" to a particular speaker or making it sound better.
