Found this video on a guy from eDesigns, showing how to set amplifier gains using a calibrated 50 Hz Test tone, a DMM and "dummy load" resistors instead of speakers. Here's the video link:
http://www.icixsound.com/iv/view_video.php?viewkey=929b125f8597834fa83a
If you want it in long hand:
http://www.icixsound.com/vb/showthread.php?s=3f7c39cd577c161887d917ebd13e8e57&t=27819
Test tones at 50 and 1,000 Hz are also available on the video link for your computer. They are 30 seconds long and we can always use repeat playback if more time is needed.
FYI: If you have Media Player and use the graphic vertical bars, note the harmonics in this test tone. See how the highs are still there, but drop off fast on the bar graph?
Neat huh?
Swez
Replies (3)
lilschtive on 01/3/2007 00:37:02
wow that video makes it preety simple..
if you didn't have a tone generator, could you simply make a cd with a 50hz tone, and play it in your car?
cplkittle on 01/3/2007 01:06:19
yes.
james_blunt on 01/13/2007 17:06:44
this help out alot
http://www.icixsound.com/iv/view_video.php?viewkey=929b125f8597834fa83a
If you want it in long hand:
http://www.icixsound.com/vb/showthread.php?s=3f7c39cd577c161887d917ebd13e8e57&t=27819
Test tones at 50 and 1,000 Hz are also available on the video link for your computer. They are 30 seconds long and we can always use repeat playback if more time is needed.
FYI: If you have Media Player and use the graphic vertical bars, note the harmonics in this test tone. See how the highs are still there, but drop off fast on the bar graph?
Neat huh?
Swez
Replies (3)
lilschtive on 01/3/2007 00:37:02
wow that video makes it preety simple..
if you didn't have a tone generator, could you simply make a cd with a 50hz tone, and play it in your car?
cplkittle on 01/3/2007 01:06:19
yes.
james_blunt on 01/13/2007 17:06:44
this help out alot
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