DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 56 - diyAudio
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Old 20th August 2011, 10:25 AM   #551
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Quote:
Originally Posted by jean-paul View Post
So connect the primary winding to + and - outputs of the DAC and you won't have a problem.
I see, there is no DC between the balanced outputs to worry about.

Last edited by mrwireless; 20th August 2011 at 10:28 AM.
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Old 20th August 2011, 05:46 PM   #552
data is offline data  Australia
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Hang on a bit...

In another thread someone states there is 2v DC on the DAC outputs, and this would follow as these are voltage out DACs.

Capacitor at voltage DAC output

This is getting confusing

With that Jensen transformer JT-11-EM it states "Driving
signals should be free of DC and source impedance kept as low as possible."

But with the few other ones listed that I looked at, it reads "For best performance, driving
signals should be free of DC and source impedance kept as low as possible." So it looks like the JT-11-EM needs to be avoided for this application, as far as I can see.

Looks as though I linked the wrong page to begin with.

Best to look at these ones http://www.jensen-transformers.com/ln_in.html

Last edited by data; 20th August 2011 at 06:14 PM.
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Old 20th August 2011, 06:10 PM   #553
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God damn, you guys are right

Just replaced C23-24-25 and C38-39, the bass and the dynamic, is SO MUCH BETTER, just after 10 hours off playing.

looking forward to replace C3 and the 3 regulators
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Old 20th August 2011, 06:18 PM   #554
data is offline data  Australia
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Looks as though I linked the wrong page/model to begin with.

I'm not sure what Jensen's are suitable for these AKM DACs
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Old 20th August 2011, 06:25 PM   #555
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Red face Regulator Voltages

Hi guys,

Finally got my DAC up and running. Im a little concerned and am hopping someone can help. My kit shows a pair or 15v regulators on the screen printing. however the kit contained 12v regulators. I have seen versions of the PCB with 7812 12v regulators screen printed on the board. Does anyone know if the kit was revised? If so what else changed and what version is better? These two regulators are running VERY hot i have had to add a large heat sink to keep them cool. Im powering with a 15-0-15 vac maybe to high for these regulators. I have had a good look around but have not found this discussed anywhere. Would be great full if someone know about this?

Russell
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Old 20th August 2011, 06:29 PM   #556
MrSlim is offline MrSlim  Canada
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If the dc level (~2v) on both the +ve and -ve outputs of the dac is the same(which i suspect it is) then the transformer connected across them sees a 0v differential.
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Old 20th August 2011, 06:38 PM   #557
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Ah OK

Now this is starting to make sense again to me
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Old 20th August 2011, 07:09 PM   #558
Ryssen is offline Ryssen  Sweden
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I read the AK4396 datasheet,and it says that the DAC leaves 2,8v Peak to Peak that would be 0,99Volt RMS.That means AK4396 leavs less Voltage than e.x CS4398.Am I right about that?
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Old 21st August 2011, 04:47 PM   #559
F1 FAN is offline F1 FAN  Canada
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Here is my finished variation on the AK4396 theme.
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Old 21st August 2011, 05:16 PM   #560
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Some pictures of my DAC project. I built my project integrated.
Still have to connect the LEDs to the front-panel some time.

Maarten
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