E-MU 0404 USB mod wiki - Discussion - diyAudio
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(13) Comments for: E-MU 0404 USB mod wiki Page Tools Search this Page
Old 26th March 2010, 04:10 AM   #1
1audio is offline 1audio  United States
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A few issues around this and the 0202 and Tracker Pre- first the Windows driver has not been changed since 2008 and doesn't work properly with Windows 7 (so far). Second, they seem to have constrained the digital output to a max of 96K with no obvious reason why. I don't have an 0404 so I can't test to see what happens at the 176 and 192 sample rates.
There is support in Linux/ALSA for the EMU usb cards, and I expect it will be more stable than EMU's drivers are reputed to be.

I hope worthwhile imporvements can be made since these are available and reasonably priced.
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Old 22nd May 2010, 12:53 PM   #2
audiodesign is offline audiodesign  Italy
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see
Hi-Resolution System Intro + 192KHz 24bit
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Old 22nd May 2010, 11:55 PM   #3
1audio is offline 1audio  United States
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I had more success with the Windows driver on Win 7 when I figured out that there are several places to set the sample rate. The whole think is really kludgey compared to XP.

However the 0404 specs say the max sample rate from the digital outputs is 96K (not the 192K possible internally). modifying the power supplies will help a lot since the internal clocks are sensitive to noise.
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Old 3rd August 2010, 04:51 AM   #4
dtk669 is offline dtk669  Viet Nam
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Hello everybody!
Need Help!
I have an EMU 0404. I put power supply 19VDC for the EMU 0404 and the results are a visual IC U10 (TPS61040=PHOI) was burned black.
In my country, i can't buy U10 IC because i don't know how to do.
Please, show me how to repair it.
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Old 10th August 2010, 01:37 PM   #5
audiodesign is offline audiodesign  Italy
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last info and measurements

Hi-Resolution System 192KHz 24bit with EMU 0404 USB
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Old 10th August 2010, 01:46 PM   #6
iko is offline iko  Canada
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Quote:
Originally Posted by dtk669 View Post
Hello everybody!
Need Help!
I have an EMU 0404. I put power supply 19VDC for the EMU 0404 and the results are a visual IC U10 (TPS61040=PHOI) was burned black.
In my country, i can't buy U10 IC because i don't know how to do.
Please, show me how to repair it.
There is absolutely no need to replace the stock 5V smps, as anyway there are a number of smps converters inside the board that will get higher and negative voltages out of the 5V.

In any case, replace U10 and the supporting resistors around it (possibly there will be some capacitors there too). Check the parts leading to U10 and after it too.
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Old 11th August 2010, 02:42 AM   #7
dtk669 is offline dtk669  Viet Nam
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Hi ikoflexer
Thank's for help!
But please help me, how to remove the 48V amplifier (I do not need Mic / Hi-Z / Line Inputs) but still use emu0404 with USB or S/PDIF
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Old 13th January 2011, 09:41 AM   #8
lwif is offline lwif
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Hi,

I would be very interested to see photos of the pcb in the article. It will ease understanding and help choosing this platform for mods.
I am thinking of removing all regulators and replace them by good ones, that is no switching regulators. It should be even possible to put batteries for some portions (li po seems to be the buzz).
Can we see the clock ? Is it possible to uprgade it with good ones ?
Thanks for your work and attention.

Lwi.
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Old 31st October 2011, 03:24 PM   #9
hallom is offline hallom  Hungary
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Hey Guys,

I bought an E-MU 0404 usb, and I want to mod it, but, I I'm not an electrician kinda person, let's say total noob, don't have the knowledge for it. So, is there anyone, who would do that for me for some bucks? I live in London by the way.

Thanks in advance,

Zoltan

neoyoli at gmail dot com
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Old 31st October 2011, 03:26 PM   #10
hallom is offline hallom  Hungary
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Hey Guys,

I bought an E-MU 0404 usb, and I want to mod it, but, I I'm not an electrician kinda person, let's say total noob, don't have the knowledge for it. So, is there anyone, who would do that for me for some bucks? I live in London by the way.

Thanks in advance,

Zoltan

neoyoli at gmail dot com
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