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Post by HD Music & Test on Apr 25, 2024 11:52:43 GMT
Yes Matt, something I did about 20 years ago before designing my owm. I found it made a small but noticeable difference to noise floor and flow, with all of the other items you chaps have performed may well ne an interesting move.
Personally I would removal the whole filter and cover imho.
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Post by mattspl on Apr 25, 2024 12:47:59 GMT
Yes Matt, something I did about 20 years ago before designing my owm. I found it made a small but noticeable difference to noise floor and flow, with all of the other items you chaps have performed may well ne an interesting move. Personally I would removal the whole filter and cover imho. Thanks Tony, I will look into it.
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Post by mattspl on Apr 27, 2024 17:51:20 GMT
Another update. After chatting to Damien, he examined the photo of the internals of my DSP and sent me back a Bob Ross sketch of how to divide up the internals with Faraday cages. I also removed the card piece to allow heat to circulate more. First up was adding a cage around some regulators Untitled by Matt Hoyle, on Flickr Opening up the DSP a day later and the copper tape had started to peel, so I added some liquid insulation tape that I got to try. Its black sticky stuff that has a very strong solvent scent. It cures enough to touch after an hour or 2, but ideally needs a day to fully cure. This also worked really well around the edges of the cages to prevent shorts. I tested the liquid tape in the oven from 60deg C to 120deg C. It is good to use upto 60 or 80deg C before it starts to soften too much, so ideal for our purpose. Untitled by Matt Hoyle, on Flickr The power supply and regulator cages seriously improved the DSP's performance. I couldn't wait to try more. This morning I decided to tackle as much as I could, so made a few more cages. Untitled by Matt Hoyle, on Flickr Untitled by Matt Hoyle, on Flickr I messed up somewhere with my measurements here, so had to extend this one to fit over a lone capacitor on the Input stage. Untitled by Matt Hoyle, on Flickr Untitled by Matt Hoyle, on Flickr I did a dry fit before securing everything. Untitled by Matt Hoyle, on Flickr Untitled by Matt Hoyle, on Flickr All I can say is these mods have completely transformed my DSP. If somebody had told me they put a new fancy Dac in my system, I'd have believed them. Thanks to Damien and Atoz for starting all this and helping out with instructions and materials.
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atoz
Rank: Trio
Posts: 129
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Post by atoz on Apr 27, 2024 18:01:49 GMT
Matt, that's a fantastic job you did there, my dac was a walk in the park compared to what you took on.
Good when you do this work and you hear the outcome.
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Post by mattspl on Apr 27, 2024 18:07:42 GMT
Thanks atoz, it was worth it in the end.
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Post by mattspl on Apr 27, 2024 18:11:27 GMT
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Post by stellabagpuss on Apr 27, 2024 18:39:19 GMT
Just got back from the Rain Forest... Those Damn Worshippers 🤣
I'm so pleased you came on board for this Matt, not only has it exceeded your expectations, but we also had some great brain storming moments, and it's forced us to look for material products we didn't even know existed.
As l've said, the Mods are more Arts and Crafts work,anyway well done. In the words of Yazz "The only way is up"
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Post by mattspl on Apr 30, 2024 20:14:23 GMT
Another update on the Faraday cage mods. There were a couple of other area's Damien suggested I tackle. Untitled by Matt Hoyle, on Flickr This was quite awkward due to proximity to everything else and required lots of the liquid tape, some of the sound deadening putty and a piece of 3M heat resistant insulating tape. I let it all dry overnight before putting the lid on. I used copper mesh this time as it arrived earlier. Untitled by Matt Hoyle, on Flickr I'm now finished with the DSP Untitled by Matt Hoyle, on Flickr Things have improved greatly since the start of this process and with each stage things improved more. Everything is so much quieter now, less bright, better bass, better imaging.
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Post by stellabagpuss on Apr 30, 2024 20:59:58 GMT
Excellent Matt... I'm so pleased all the efforts you put in, have resulted in an improvement, you probably couldn't have imagined.
l won't bleat on anymore, but l guess,the reality of most designs,that your missing 30% of performance, just from leakage.
Can't wait to see the progress and how you're going to push your DAC proformance even more.
Well done, l'm chuffed Matt
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Post by mattspl on Apr 30, 2024 21:56:35 GMT
Excellent Matt... I'm so pleased all the efforts you put in, have resulted in an improvement, you probably couldn't have imagined. l won't bleat on anymore, but l guess,the reality of most designs,that your missing 30% of performance, just from leakage. Can't wait to see the progress and how you're going to push your DAC proformance even more. Well done, l'm chuffed Matt Thanks Damien, looking forward to some Dac mods.
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atoz
Rank: Trio
Posts: 129
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Post by atoz on May 1, 2024 6:52:45 GMT
Well done Matt,great effort with a happy outcome.
Hardest part of the Gustard DACs mesh work, is deciding which screws to loosen to take the lid off
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Post by MartinT on May 1, 2024 8:29:42 GMT
Hardest part of the Gustard DACs mesh work, is deciding which screws to loosen to take the lid off LOL - yes, that does take some working out! Those are some long bolts.
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