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Old 21st November 2012, 12:32 AM   #491
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Default DacMagic, and DacMagic Plus

I own a Dacmagic, and have followed this thread--The only mod I did was to bypass the output caps ( I had only 1.7mv offset, and I use the balanced outputs) and I replaced the AC supply with an Audio Advisor Pangea supply--just bypassing the caps made a huge difference--thanks for the info in this thread, the new AC supply was better also (larger soundstage).

I was thinking of purchasing a DacMagic Plus (I have a few 176.4 and 192 files and DVD audios) and wondered if anyone has measured the DC offset in the Plus unit, and if the same cap bypass would work in the Plus version? It has the same DACs but I think the output opamps are different. I can't use the new supply as the Plus uses a DC supply. (I can't find a thread on the Plus)
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Old 23rd January 2015, 06:54 AM   #492
lucpes is offline lucpes  Romania
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Default USB Input

Does the DACMagic Plus convert usb to i2s or spdif down the chain?
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Old 24th July 2015, 01:00 PM   #493
tomzzi is offline tomzzi  Slovenia
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My DacMagic is "overheating" when running for more than 15-20 mins... Marked area on picture is hot to touch...
Why? Is it normal?

Click the image to open in full size.
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Old 24th July 2015, 06:20 PM   #494
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Yes, it is normal
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Old 30th November 2015, 12:52 PM   #495
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Quote:
Originally Posted by ClefChef View Post
I think what you're hearing is the induction coil, somewhere in power supply, oscillating at high frequencies. It is usually caused by lose ferrite core inside the coil. Determine which one is ringing (do it with a long piece of rubber tube inserted in the ear). You may have to disassemble the coil and put some glue and/or shrink tubing on it.
I had a ringing coil in my DacMagic, i dealt with it by filling it with epoxy - dead silent now.
Is it possible for someone to explain to me where the coils are? I have searched high and low, but sadly I am too much of a beginner.

Love this thread, after receiving my second hand dacmagic, I quickly realised I had a coil whine...

cheers.
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Old 30th November 2015, 01:32 PM   #496
Mooly is offline Mooly  United Kingdom
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Picture in post # 490. Upper right area, the two round parts with a white dot on them are two obviously visible ones.
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Old 30th November 2015, 01:53 PM   #497
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@Mooly,
Thanks for the quick reply! My first diy fix is on the way! No clue yet how to open them up, but I think I'll find a way
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Old 30th November 2015, 01:56 PM   #498
Mooly is offline Mooly  United Kingdom
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You may not be able to open them, the best you could hope for would be to remove them and fill them with epoxy glue from the bottom.

The outer part on those looks like ferrite which is very brittle.
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Old 8th December 2015, 07:59 AM   #499
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Originally Posted by Mooly View Post
You may not be able to open them, the best you could hope for would be to remove them and fill them with epoxy glue from the bottom.

The outer part on those looks like ferrite which is very brittle.
Thanks for the info, I will try all this during coming weekend. Another questions pops to mind. When the coil is removed from the PCB, filled with hot glue/epoxy. how do I attach the coil back again to the PCB. I have read that hot glue would be possible or is soldering a prefered method?
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Old 8th December 2015, 08:36 AM   #500
Mooly is offline Mooly  United Kingdom
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They will be soldered onto the PCB (which is most likely double sided with plated vias so be careful), and will be of this general form.
Attached Images
File Type: jpg I1.JPG (13.8 KB, 67 views)
File Type: jpg I2.JPG (14.4 KB, 66 views)
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