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Old 01-22-2008, 12:37 PM
JMS40 JMS40 is offline
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Join Date: Nov 2000
Location: Gnashville
Posts: 6,347
Default Re: Mbox 2 hum and computer data sounds ?

Quote:

I would like the official line from a digidesign representative please.


Not that it's definitive or the end-all statement, but I guess you could call this the "official line" ... From the General Troubleshooting sticky at the top of this forum:

Quote:
If you're experiencing noise from the Mbox II, there are several things to try:

- Make sure you're using balanced cables on all balanced inputs and outputs. Remember that the Mbox 2 outputs are unbalanced, and should use unbalanced connections.
- Try using a power conditioner for all your electronic gear (Furman, Monster).
- Run your outputs directly to shielded monitors and not through a mixer to see if the noise goes away.
- Some noise complaints arise from noisy power supply units inside computers - try installing and running on another computer (or if you're using a laptop, unplug the power supply and run off of batteries to see if noise goes away). Moving the Mbox II in relation to your monitor, computer or speakers may also lessen the noise.
- Unplug and turn off all unnecessary gear and run only the computer, the Mbox II, and monitors.
- Listen through headphones to determine if the noise is isolated to a particular output.
- Make sure you're not running through a USB hub or other device - the Mbox II always needs to be plugged directly into the computer.
- Try all USB ports on the computer to see if the noise lessens.
- Trace your cable path for long cable runs, and isolate your cables from possible interference (other gear, florescent lighting, CRT monitors, etc).

Lastly, if you feel a repair is necessary, please contact Digidesign Tech Support to set up an RA.
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