dc10audio use Duelund CAST capacitor ?

Mountain-high,

I have been using Duelund products since 2006. In that time I have tried VSF Cu, VSF Black Cu, Cast Cu, and Cast SIlver. Each time I moved up the Duelund line the sonics improved. When I finally tried the Silver Cast it was hard for me to get my head around the price.

When I finally took the leap I was well rewarded. Going from the VSF Cu to Cast Cu is a very obvious improvement. Going from a Cast Cu to a Cast Ag is as obvious.

Most associate silver with being thin or bright. My experience confirms this if it is stranded silver wire in a teflon dielectric. Duelund uses silver foil, this is why the cost is high because foil is expensive to manufacture, and it does not have any of these traits. I used Dulund silver on the LF first and the improvement was more definition in the bass, greater weight, and more speed. Notes do not hang longer than they should and have a natural decay. Going back to copper it almost seems the bass is bloated after using the silver.

I use Duelund Ag wire inside the speaker and this was a substantial upgrade. Check in with Volleyguy as I instructed him what I did and he did the same regarding the internal wiring. Our findings were almost identical.

I have Scan Speak Revelator drivers in my speakers. With the Duelund Xover and internal wiring they pair very well together. I call them the Denmark connection.

The one area that is not discussed that much is Duelund inductors. For me they are the real value in the Duelund lineup. You have not heard a black background until you try them. You will hear more ambient infomation with them in. They improve all frequencies. However, in the LF in series with the bass driver you will hear things that you never did.

The caveat with Duelund is their size. They are BIG ASS. If you are interested I have numerous Duelund caps lying around and can send a photo of them compared to a V Cap, Clarity MR, Jupiter HT, Mundorf Supreme Siler/Gold.
These caps are dwarfed next to the Duelund.

Charles1dad,

I agree. The Cast Cu are an exceptional cap. I mentioned Ag because the question was asked concerning the silver.

The question I did not answer was will Cast Cu mate well with Ag wire. That depends on the silver wire. I have never used dc10audio silver wire so I have no comment.

Mountain-high,

I went to dc10audio website and read that they design their speakers like musical instruments. To the point that they use tonewood. They believe in a resonating speaker box but choose, as their top cap choice, a Duelund Cast that has been designed to do the opposite. Staying with the theme of material used (tonewood) for musical instruments, the Duelunds uses the metal (copper and silver alloy) of musical instruments. It seems odd they did not choose a cap that resonated to go along with their speaker.

I'm not deliberately trying to be antagonistic. The two seem contrary to one another and from my experience this is where you start to throw more money into a system than what is needed.

Bhobba,

That is what makes this hobby so interesting. It is not so much what we agree upon, based on our personal experience. Instead it is the different views and experiences we have.

There are so many variables with silver and copper that effects the outcome. Most of the ribbon copper or silver I have experienced is spring temper. Using an H02 soft annealed would be a good place to start. I am not a metallurgist but having the right material to start with is essential.

I have had my own custom silver ribbon wire made to my spec's. With a little supervision of course.

I have used 8 awg North Creek (George Short) inductors on numerous occasions. I still have some laying around. However, they were noisy compared to the Duelunds. I have custom wound 8awg Cast Duelund inductors that were the same value as the North Creek 8 awg. Comparing them side by side all four of us who were evaluating chose the Duelund.
North Creek inductors are my second choice.

I agree with your comment regarding the Cast resistors and yes they are the best value. I was mentioning the inductors because they bring so much to the table and yet there is hardly any ink about them.

I love custom speaker projects. You have no limitations but your imagination and ability. When you have it build please send me some photos.

Jeffreybehr,

I will send off some audio porn when time permits.

Charles1dad,

That was my initial thought but thinking upon it further I interpreted their design philosophy to be literal. That led me to think if you want the wood to resonate, then like musical instruments, the metal must also.

An appropriate analogy would be if a chef was going to create a dessert to be like a Reese's peanut butter cup. Once the chef stated his objection, the expectations of those who are to sample/taste the dessert are already formed before they sample.
If the chef chose to leave out peanut butter, then the dessert is not going to meet the expectations of those who sample or taste it. If the chef simply stated he would make a dessert for them and used chocolate, as the main ingredient, then most likely those who sample it will like it.

As chocolate and peanut butter are to Reese's, tonewood and copper alloy are to musical instruments. You remove one it negates the whole.

Most likely I'm over thinking it but you get where I am coming from.

Charles1dad,

Like you I chose the Duelund Cast for the same reasons. I wrote my post before Quad man's post was posted. So I have my answer.

Mountain-high,

Out of the 11 threads you started 10 of them concern dc10audio. If you work for them, or know them, you are doing them a diservice.