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New Lowther Drivers.

I have ordered a pair of the new, improved Lowther DX3. The improvements consist of changing the suspension from a rolled-out type to a rolled-in type, putting a rolled edge on the whizzer cone to stiffen the edge and eliminate the midrange peak called "Lowther shout". They also offer a new phase plug that looks like a "light bulb with holes" that is controversial. Bullet style phase plug is still standard. They are sending me both types for evaluation.
I am currently building a set of Voigt Pipes enclosures, which I hope to get done before the drivers arrive. I am following the plans from the Lowther Club of Norway website.
I'm very excited about this, because I could use some extra efficiency in my speakers. If anyone has built these Lowther Voigt Pipes before and can offer some advice, it would be appreciated. It is not really hard, but sometimes a simple tip can make the difference. BTW, Doug(Grandpad), you really helped me to make up my mind on buying these drivers in the last thread I put up on this topic. As always, I will give reports on results, just in case anyone is interested. Comments?
twl
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albertporter
4,949 posts
 
Great thread TWL, you are leading the way on this very interesting part of high end audio.

I hope to get to a point where I can play in this realm of super simple, super efficient audio products.
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dekay
5,351 posts
 
TWL:

Here are a couple of chat rooms which may be of help:

http://f18.parsimony.net/forum31999/

http://members.aol.com/cycarpio/home.htm (BBS portion)

The second site is mainly in Japanese, but I had no problem asking and receiving info in English (Zuki and a friend supplied the cabinet plans for a vintage pair of Stephens 8" drivers), these guys/gals are great. There is another site in Italy, but I have lost its address (perhaps you can locate it)?

Sorry no cabinet design tips from me (as you know I am new to this), but looking forward to your take on the "new" Lowther's.
rogerroger
76 posts
 
I assume that you have already done so--but just in case you haven't--check the "single driver" website, and also the "high efficiency" section at audioasylum. The asylum also has a DIY section. Best of luck.
twl OP
3,251 posts
 
Thanks, guys. I'll check all those sites.
marklivia
60 posts
 
Also check out the posts at the BD-DesignWWWboard. Thats the site of Burt, the designer of the Oris Horns. They talk about all designs Lowther and high efficency. I'd do a post there. Those guys are very helpful.
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