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Crossover component upgrade, DUELUND????

I am in the process of researching the components in my Dunlavy IVa speakers and have narrowed my choices down to two companies. I am looking at Mundorf M-CAP SUPREME and M-CAP DILVER FOIL IN OIL caps. I am also looking at Mundorf for the MOX resistors.

The second company I am looking at is Duelund Coherent Audio. They make a GRAPHITE RESISTOR specifically designed for crossovers. They are able to build the resistor specifically to replace my speakers parallel resistor values with one component rather than the 2-4 pieces presently used. This will (somewhat)help offset the very high price point for these resistors. These are sold through Part ConnecXion and factory direct. I have been speaking to the factory and we are also discussing their very different design for capacitors. I am presently waiting to hear back on the cost for the values I require.

While I wait, I was hoping that someone might have some experience with these products. I am very impressed with the design concept behind both the graphite resistors and the flat foil capacitors.

jd
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dgarretson
2,394 posts
 
Duelund graphite resistors blew away Caddock MP820s in my Merlins. Very transparent without stridency after break-in. Claritycap MR is also fine in xover, if you have the space for it. Similar to claims made by Duelund, the MR series is constructed to minimize internal resonance. AFAIK, these are the only two manufacturers making this point.

I'm also making a pass through my xover and am curious what internal wire you plan to use.
sherod
1,681 posts
 
I'm curious what the break-in is like for the new Claritycap MR. I have read from one user that it has a very quick break-in compared to other film types. I just tonight replaced a pair of Hovland Musicaps in my preamp outputs with a new pair of these Claritycap MR caps. After a couple of hours, they don't sound too bad, but the mids are a bit recessed compared to the Hovlands.
dgarretson
2,394 posts
 
Claritycap MR took 100 hours or so to relax and open up, after which I installed other upgrades and lost track.
sherod
1,681 posts
 
Thanks for the feedback. They only have about 16 hours on them in my preamp and I can already hear an improvement.
casouza
239 posts
 
Sherod, another explanation for what you are hearing is that in general Hovland caps have a slightly forward midrange.
This may be perfect in the right system or could be a tweak opportunity, if the system's midrange bites.
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