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dmp
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Post subject: KLH Model 11 W speaker ohms Posted: Dec Tue 15, 2020 12:58 am |
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Joined: Oct Mon 12, 2020 3:01 pm Posts: 22
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I'm trying to find out the ohm rating on the original KLH Model 11/W speakers.
Does anyone know if they are 4 or 8 ohm?
Would it work to use either 4 or 8 ohm as a replacement driver?
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K7MCG
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Post subject: Re: KLH Model 11 W speaker ohms Posted: Dec Tue 15, 2020 3:43 am |
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Joined: Jan Thu 01, 1970 1:00 am Posts: 3681 Location: Seattle WA US
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The early KLH speakers, like the AR speakers, used drivers specifically designed for "acoustic suspension. These drivers depend on the air mass in a small sealed enclosure to provide part of the restoring force for the cone. If you replace a woofer, the replacement must be suitable for the exact volume (and stuffing) of the KLH enclosure. And even then, the response will be unlikely to match a similar enclosure with its original driver. Bottom line: changing woofers in an acoustic suspension enclosure is a baaaad idea.
-Chuck
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dmp
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Post subject: Re: KLH Model 11 W speaker ohms Posted: Dec Tue 15, 2020 4:22 am |
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Joined: Oct Mon 12, 2020 3:01 pm Posts: 22
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Thanks for your reply.
The replacement drivers I am considering are recommended for a .18 cubic foot enclosure, and that is exactly what the KLH Model 11 boxes are. I understand your reasoning but have replaced drivers in acoustic suspension systems before, and had really good results.
Balanced speakers, with very good spl/freq. specs really help ensure this.
Have you had first-hand experience that goes counter to this result?
I was mainly wondering if the KLH Model 11's were designed as 4 or 8 ohm
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Tbirdkid
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Post subject: Re: KLH Model 11 W speaker ohms Posted: Dec Tue 15, 2020 3:48 pm |
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Joined: Aug Sun 23, 2015 6:01 pm Posts: 1206 Location: NJ 08090
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dmp
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Post subject: Re: KLH Model 11 W speaker ohms Posted: Dec Tue 15, 2020 4:58 pm |
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Joined: Oct Mon 12, 2020 3:01 pm Posts: 22
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Tbirdkid,
Thanks for the reply. I couldn't find this in the manual.
Dave
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tubeactive
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Post subject: Re: KLH Model 11 W speaker ohms Posted: Dec Mon 21, 2020 1:12 pm |
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Joined: May Thu 24, 2018 11:27 pm Posts: 54 Location: NJ 08520
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Hi...My single speaker measures 7.3 Ohms DCResistance with an accurate Fluke 77 VOM. Good luck with the resto...
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