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Old 30th December 2010, 03:53 PM   #1
sts9fan is offline sts9fan  United States
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Default Woden Dunideer Build Complete

Here are some pictures of my Woden Design Dunideer build. It uses the Mark Audio Alpair 6. So far they sound great. They excel at jazz and acoustic music. Nice big soundstage and fantastic dynamics. They are a pretty easy build as well.

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Old 30th December 2010, 03:58 PM   #2
PJN is offline PJN  United States
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sts9fan,

Congratulations, a really beautiful build ! Are you using a BSC filter with them by any chance ?

PJN
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Old 30th December 2010, 03:59 PM   #3
sts9fan is offline sts9fan  United States
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They currently have no filter.
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Old 30th December 2010, 04:07 PM   #4
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Very nice. How many dB's has sensitivity improved ?
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Old 30th December 2010, 04:07 PM   #5
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Very nice build.
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Old 30th December 2010, 04:11 PM   #6
sts9fan is offline sts9fan  United States
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Scott quotes 86db in his plans which is the same as on the Mark Audio site. I have not tested them. I am using them with a 40W EL34 Quicksilver GLA so no issue there.
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Old 30th December 2010, 05:10 PM   #7
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Glad you're enjoying them. That's a really nice build.

To answer a couple of the general queries:

-Essentially, driver efficiency in back-loaded enclosures doesn't change. They don't operate over the entire audible frequency range, just a narrow portion thereof, preferably from the desired lower cut-off down to the driver's mass corner frequency. Therefore, while you can boost things considerably in this region, it is only in this region.

-No compensation for step loss is required. The A6 already largely self-corrects for step loss, & the horn provides the rest.

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Old 30th December 2010, 05:57 PM   #8
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Thanks for the explanation, Scott.
This is a great way to enjoy fullrange drivers...driver directly connected to amp without nasty components !
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Old 30th December 2010, 08:28 PM   #9
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Kris,

Good to see you enjoying these.

Send me some larger versions of the pics?

dave
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Old 30th December 2010, 09:37 PM   #10
sts9fan is offline sts9fan  United States
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