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  #21  
Old 02-12-2013, 08:27 PM
Elberoth Elberoth is offline
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mg87 - what I did was to cut the original ARC fan cable in half, and solder a standard computer fan connector. That allow me to try various different fans and ULNA attenuators.









As you can see, at first I did not use the silicone mounts to fasten the fans - I got those later on. Those are essential.

If you also solder a similar connector on the original ARC fan, that will allow you to easily revert to stock if needed (prior sale etc.).
Last edited by Elberoth; 02-13-2013 at 05:14 AM.
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  #22  
Old 02-12-2013, 08:59 PM
mg87 mg87 is offline
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That is a great road map, Thanks! All of the parts should be here by Friday, including spare 3 pin molex fittings.
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  #23  
Old 02-16-2013, 05:46 PM
mg87 mg87 is offline
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Elberoth,

I am well underway right now and have a question. When you switched to silicone "screws" dis you leave in the rubber grommets for the original installation?
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  #24  
Old 02-16-2013, 06:22 PM
Elberoth Elberoth is offline
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Yes. The silicone mounts stratched just enough. I think that when you get rid of those grommets, the holes will be to big.
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  #25  
Old 02-16-2013, 06:54 PM
mg87 mg87 is offline
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My silicone screws are not long enough. I'll have to use the OEM metal screws.
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  #26  
Old 02-16-2013, 07:29 PM
Elberoth Elberoth is offline
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Buy another set or two. They are dirt cheap. Look for the softest ones you could find. The soft ones tend to be the most flexible/streatchable. They really help to bring the noise down.
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  #27  
Old 02-16-2013, 09:28 PM
mg87 mg87 is offline
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I need to find some larger ones. I bought two extra sets but they are all the same brand and same specs. I had a good idea poor execution :-)

It's on hold for now, one is in, no obvious change. I didn't have a solder so it is nicely crimped until I can procure more bits to tinker. Currently looks OEM, which I am calling a victory, for now.
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  #28  
Old 02-16-2013, 09:33 PM
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jdandy jdandy is offline
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Adam.......Nice step by step walk through of the fan installation.
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  #29  
Old 02-18-2013, 02:24 PM
Bobvin Bobvin is offline
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If you switch to KT120's, you "might" be able to run fanless, as they seem to run much cooler than the 6550s. My listening room used to get quite warm after several hours when I had the 6550's installed, but now on a cold night I have to open the vents so the furnace can warm the room.
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  #30  
Old 02-18-2013, 11:00 PM
mg87 mg87 is offline
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Bobvin,

That is great news! I am planning a switch midcycle. I do recognize a slight reduction in noise output with the one "ultra quiet" fan. Since the new fan is a direct match to the Nexus fans that came installed from ARC, I am going to install the other (similar to Elberoth's process" and add a low noise attenuator when the KT-120's go in.

So far, so good - I'll put up some pics when complete.

Thanks for all the help and guidance - Sincerely, Mike
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