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Here's the kit you're seeking, Dynaudio Foccus, small 2-Way used the 17W75 and the D28 tweeter

71.55.46.195

cfb

In Reply to: RE: dynaudio 17w75 help posted by marksrent@gmail.com on July 10, 2012 at 15:36:29

By the way, the Esotec D260 tweeter was sometimes used in place of the D28 without necessitating a change in the crossover but new old stock Esotec tweeters are fairly pricey, not to mention very hard to find. It will be difficult enough to find a pair of Dynaudio D28 tweeters. There was also the kit Twynns, used the D260 tweeter and a pair of the 17Ws but it's a tall cabinet.

If you can't find a set of Dynaudio tweeters the closest to their design would be the Morel's such as the MDT 30.

The link to the small 2-way Foccus schematic and cabinet plans are;

Crossover schematic,
http://www.gattiweb.com/images/dynaudio/foccus4.pdf

Cabinet plans,
http://www.gattiweb.com/images/dynaudio/foccus3.pdf

Hope this helps.
2-Way X/O (Open in New Window)

Follow Ups:

Bit of care,as there were different models of 17W75, 8/4/L/XL - Edp 08:35:25 07/11/12 (2)
Think the Focus used the 4ohm version, they used to have another one with the 8 and the XL. I'll see if I can dig up the old plans for those units.

Funny thing was that although many Dynaudio drivers were suited/designed for "first order", they can have fairly complex, high part count crossovers.
- Yes indeed, this was for the 4 ohm version. The 17W75 was also used with a 3rd order x/o in the MTM kit. - cfb 08:57:44 07/11/12 (1)
  Still, the problem will be finding a suitable tweeter if the OP does not have a set of Dynaudio or Morels.
  
  If he goes with something new say Scan-Speak that will necessitate a new crossover. I had the impression he was looking for a simple and straight forward kit design, not really wishing to engineer a new 2-way system from scratch.
  - Agreed on what OP was looking for and your Morel suggestion was very solid - Edp 11:18:49 07/11/12 (0)
    Agree completely with you approach and suggestion on the Morel as Dyn replacement. Actually found a xover on web that used both the Dyn 17w75 and Morel D32, but have no experience with it so hard to recommend.
    - Unknown D 17W75/Morel D32 project (Open in New Window)
If you go with the Morel MDT 33 tweeters in place of Dynaudio's might need to pad them down 1 or 2db. - cfb 04:53:16 07/11/12 (0)
Forgot to add that. Those who have replaced Dynaudio tweeters with Morels sometimes found them to be slightly more efficient hence the need to pad them down a decibel or so; unit to unit variation and all.

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