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  #1  
Old 02-15-2000, 02:16 AM
Corey Shay Corey Shay is offline
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Location: Orlando, FL, USA
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Default 888|24 clips at or near 0 dB Full Scale!

I've had my 888|24 for about a month now and soon after I received it, I noticed that it seemed to distort when playing material through the Waves L1 or Maxim. I heard it on some retail CD's as well. The only way to alleviate the problem was to reduce the output of my mixes by about 1 dB.

I also tried playing sinewaves and they seemed to always break up (audibly) when the output level exceeded -1 dBFS. I admit it could have been my mixer (Mackie 1202 VLZ Pro), but I had nothing else to play it through. So I recalibrated the outputs by reducing them all by -4 dB so that it's now set to -14. The problem seems to have been alleviated.

By the way, when recalibrating I noticed that often one output would be off from another by as much as 1 dB. I was surprised at this because I've only had the unit (new) for a month and Digi does calibrate the levels beforehand.

Has anyone else experienced these problems? Why whould a high quality D/A distort after conversion?
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  #2  
Old 02-15-2000, 12:09 PM
Tim Walters Tim Walters is offline
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Default Re: 888|24 clips at or near 0 dB Full Scale!

The Mackie can't handle a full-code signal from PT unless you trim it down, as you've done. This used to drive me crazy until I figured it out.
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Old 02-15-2000, 07:23 PM
Corey Shay Corey Shay is offline
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Default Re: 888|24 clips at or near 0 dB Full Scale!

Thanks for the feedback, Tim. So this means that the 888 does not distort on output? I was suspecting this because I've heard about D/A's distorting before, even on some pro equipment (the Panasonic SV-3700 DAT deck comes to mind).
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  #4  
Old 02-16-2000, 04:27 PM
Tim Walters Tim Walters is offline
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Default Re: 888|24 clips at or near 0 dB Full Scale!

The 888 is totally clean. It just has a hotter output than the Mackie can handle.
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  #5  
Old 02-18-2000, 03:14 PM
RP Montoya RP Montoya is offline
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Location: Long Beach, CA USA
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Default Re: 888|24 clips at or near 0 dB Full Scale!

Hi,
The AES/EBU Digital to analog conversion is
a -14db digital signal is equal to 0db analog.
Hope that helps anybody!
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