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Post by stellabagpuss on Apr 13, 2024 13:12:05 GMT
Which end of the cable do use, and l presume,when you say ground, your soldering on to the ground pin on the XLR connector?
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Post by mattspl on Apr 13, 2024 13:25:51 GMT
Which end of the cable do use, and l presume,when you say ground, your soldering on to the ground pin on the XLR connector? You connect to the source end of the cable, so in my case the Dac end, which then feeds the DSP. You solder to Pin 1 on the XLR which is the ground, or for an RCA it will be the outer section of the connector.
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Post by stellabagpuss on Apr 13, 2024 14:06:31 GMT
Thanks Matt... Look forward to hear if its a further improvement..
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Post by mattspl on Apr 13, 2024 14:17:24 GMT
Thanks Matt... Look forward to hear if its a further improvement.. Biggest improvement so far. More of everything. Music flows more easily now, catching the rhythm and drawing you in. Much easier to hear into all the layers of the track, but it’s more cohesive at the same time. Now I wonder if I’d get the same result on the XLR’s going to the active speakers?
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Post by stellabagpuss on Apr 13, 2024 14:47:46 GMT
You're sold it to me already Matt. l better start ordering some materials...
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Post by mattspl on Apr 13, 2024 15:10:51 GMT
You're sold it to me already Matt. l better start ordering some materials... Apparently, if you can, swap the existing XLR or RCA connectors for solderless ones for the best results. I couldn’t really do this due to the design of my cables. The EIZZ connector that I used for my AES ground cable was about €23. So you’d need 2 male and 2 female if you were going that route, but I just used Oyaide 4.7% silver solder and got great results.
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Post by stellabagpuss on Apr 15, 2024 13:44:05 GMT
Well l thought l should pull my finger out. l can report than removing the sheilding from the ground cable does indeed bring benefits.
Nice one Matt...
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Post by mattspl on Apr 15, 2024 16:39:30 GMT
Well l thought l should pull my finger out. L can report than removing the sheilding from the ground cable does indeed bring benefits. Nice one Matt... Great news, I’m glad you have confirmed this as it’s difficult to know if your going mad or not when it comes to these things, especially when it’s a slow process to reverse something like cable screening, without having loads of different cables made up to play with.
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Post by stellabagpuss on Apr 15, 2024 18:19:13 GMT
Well l thought l should pull my finger out. L can report than removing the sheilding from the ground cable does indeed bring benefits. Nice one Matt... Great news, I’m glad you have confirmed this as it’s difficult to know if your going mad or not when it comes to these things, especially when it’s a slow process to reverse something like cable screening, without having loads of different cables made up to play with. Well .. Your not going crazy Matt, l'll put a sheild back on and double check, as l did a few mods at the same time. And to definitely confirm...we both not having a moment.
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Post by mattspl on Apr 16, 2024 17:55:54 GMT
Having spent some time with both Ground boxes joined together with all analogue and digital cables connected, I separated the 2 boxes and put Analogue on the larger box and digital on the smaller box.
I couldn’t initially make my mind up if this sounded better or just different, but at least it didn’t sound worse. I swapped back and forth once more before deciding that splitting Digital and Analogue sounded a bit better, less bright or quieter and a touch more image depth and detail.
This got me thinking as to why it would sound different or better if all grounds are connected within the Dac between digital and analogue. Damien suggested that I take a multimeter to the Dac to see if digital and analogue are connected or not and this confirmed that they are indeed separated within the Dac itself, so this would explain why keeping them in separate Ground boxes could benefit the sound.
Next test will be to put Digital on the large box and analogue on the smaller box and see what happens.
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Post by MartinT on Apr 16, 2024 18:16:13 GMT
I suspect the digital side will need the larger box.
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Post by stellabagpuss on Apr 16, 2024 18:55:38 GMT
It all heading in the right direction Matt.
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Post by mattspl on Apr 20, 2024 14:22:48 GMT
Today I took the lid off my DSP to look at doing some shielding. I'm sure I could go a lot further with this, but I wanted to try out my method first and hope It works. I stuck a piece of copper alongside part of the power supply in the hope of shielding the rest of the enclosure from its effects a little. I also applied copper tape to the white card/splash guard over the power supply section. I used the black putty substance peeled off the back of car audio sound deadening mat to stick the copper in place. Untitled by Matt Hoyle, on Flickr I also stuck a leftover piece of copper bar from my Ground box to the other clock in the DSP, rather than Tungsten as I don't have another cube. Untitled by Matt Hoyle, on Flickr I then applied some of the car audio deadening mat to the underside of the lid. Untitled by Matt Hoyle, on Flickr
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Post by stellabagpuss on Apr 20, 2024 15:19:00 GMT
Nice work Matt... The more you section certain parts, the more benefits you'll gain.
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Post by mattspl on Apr 24, 2024 22:00:57 GMT
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Post by stellabagpuss on Apr 25, 2024 6:42:59 GMT
Looking good Matt... Any difference in the sound?
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Post by mattspl on Apr 25, 2024 7:39:44 GMT
Looking good Matt... Any difference in the sound? Dynamics have improved and bass power/resolution has improved too. I might swap the steel mesh for copper when that arrives, but it’s probably a week away. I thought it was due today, but it seems it has only been delivered to eBay’s international hub in the Uk.
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atoz
Rank: Trio
Posts: 147
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Post by atoz on Apr 25, 2024 8:06:04 GMT
Good work Matt.
Looking at your pics Matt,I can see that different DACs or other equipment will bring a challenge to where and how one goes about putting the mesh on to get the results we are hearing. Well done
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Post by HD Music & Test on Apr 25, 2024 8:26:04 GMT
Place some material on the IEC filter chaps, be careful not to touch the output terminals!
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Post by mattspl on Apr 25, 2024 9:25:49 GMT
Place some material on the IEC filter chaps, be careful not to touch the output terminals! Do you mean an individual shield over the IEC filter Tony?
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