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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: 4 Ohm - 8 Ohm? posted by ghostman258@gmail.com on July 31, 2020 at 16:26:24:
I have always struggled with this myself. Actually not all of anything is a specific ohms. Or it least it used to not be. I have seen towers in the past that were actually stated at 6 ohms. If the towers have 2 or more midwoofers then depending on how they are wired (parallel,series) the resistance will be influenced. This may be done to have better matching with the chosen other drivers. If you use your ohmmeter to measure across the input terminals you may find your 8ohm ratings may be closer to say 6.8 ohms. Also remember you are dealing with "nominal impedance" and not "resistance".
As far as why there are different ratings I have no idea. An old pair of Cerwin Vegas I have are 15"woofers and rated at 4 ohms where the same series (AT) with 12" woofers are at 6 ohms.
Also I am not convinced that a different resistance has anything to do with actual sound quality, but to better match with the many different amp designs we have out in the world. And for running multiple speakers on the same amplifier.
I am not the least bit hesitant to try anything from 4-8 on my old tube amps.
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Follow Ups
- good question - samstone 07/31/2017:13:42 07/31/20 (0)
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