Rabbit
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Post by Rabbit on Mar 31, 2015 17:49:54 GMT
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solderdude
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measureutternutter
Posts: 4,886
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Post by solderdude on May 23, 2015 6:08:16 GMT
Updated the filter manual (HD600 filter) Only 11 filter PCB's left. SeNNator is discussed HERE |
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Post by chris1967 on May 25, 2015 9:48:59 GMT
I am sorry that i haven't posted any news on the filter yet, i have been busy with work and other projects and this has been delayed.
Tonight i will try and sort out a linear supply and do some listening.
Thank you Frans and Javier!!
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solderdude
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measureutternutter
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Post by solderdude on May 25, 2015 16:49:48 GMT
Yes... sometimes life has a habit of getting in the way ....
I hope it brings something positive on the table for you.
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Post by chris1967 on May 25, 2015 17:41:19 GMT
 Well this is the concoction i managed in about two hours right after work. Initial results (with trimpots all the way to the right is absolutely fabulous, there is clarity there wasn't before! I need to listen to the HE-500's with variations in the trimpots, but i like it as it is. Any suggestions? Also any suggestions for a nice aluminium box (silver is preferred) (only for the filter board supply i will leave in the other box). Thanks again Frans for a wonderful solution!! |
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Post by musicman on Jun 6, 2015 17:01:59 GMT
May I ask where you got the green rca cables? Nice looking build.
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Post by chris1967 on Jun 7, 2015 6:56:11 GMT
Thank You! The green rca cables are Belden 1694A. They are usually used for digital/video applications but they are also very good as analog rca interconects. I bought mine from thomann www.thomann.de/gr/index.html?sid=91c9af692bc60955385a95ce1cad6da0 but can get them from Blue Jean cables also www.bluejeanscable.com/store/shopbycable/1694A.htmIt is one of the best choices for emi rejection if you have this problem. I had bought many meters and have many interconnects some over 5m back then when my preamp was some distance away from my power amps. Now i use shorter pairs and like the Mogami Neglex 2534 Quad for interconects. By the way still very happy with the filter, i use it now adjusted just a little off the full counterclock wise position (in the previous post i made a mistake i meant all the way to the LEFT). |
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z3d
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Post by z3d on Jun 20, 2015 22:47:03 GMT
Hi guys I got 90% of the needed parts (electronic ones, connectors, switch, etc) to build up a complete filter for my HD600 Senny. Give a look, gonna be a long night!   Still looking for a nice but not too big aluminum enclosure...  |
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solderdude
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measureutternutter
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Post by solderdude on Jun 21, 2015 8:15:43 GMT
It is designed to be built into a Hammond 1457C1201 enclosure.
I wish my workbench would ever look as organised as yours ...
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z3d
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Post by z3d on Jun 22, 2015 11:25:20 GMT
I will give a look to that enclosure, thanks Frans. Here top and bottom filter board:   I have still to solder 3x 47uF electrolitic caps and the DCDC  |
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z3d
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Post by z3d on Jun 22, 2015 14:05:24 GMT
A quick question Frans.
For C3, C4 and C5 caps I got 47uF 63V 105C; for the C3 the 63V rating is a bit too low considering your advice in the filter manual about using 1,5x the input voltage which in my case is 48Vdc?
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solderdude
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Post by solderdude on Jun 22, 2015 15:24:42 GMT
That's sort of a rule to be on the extremely safe side.
63V rated caps will do fine on 48V as it is 15V higher than what's on there.
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Crispy
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Madrigal music is playing - Voices can faintly be heard, "Please leave this patient undisturbed."
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Post by Crispy on Jun 22, 2015 15:32:30 GMT
Here top and bottom filter board: That's a really neat build Nicola, Hope it sounds as good as it looks  |
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z3d
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Post by z3d on Jun 22, 2015 15:51:08 GMT
That's sort of a rule to be on the extremely safe side. 63V rated caps will do fine on 48V as it is 15V higher than what's on there. Perfect. Even because I noticed that going from 63V to 100V rated caps leads to a significant encrease of the diameter of the caps which in this case is critical due to the available space..so 63V here we go! |
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z3d
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Post by z3d on Jun 22, 2015 15:55:11 GMT
Here top and bottom filter board: That's a really neat build Nicola, Hope it sounds as good as it looks Thank you Chris! It's time to diy, let's solder the dcdc now. It will require some wirings because of the different pinout of this dcdc, though. |
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