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what the difference between 0db, -3db, -6db etc test tones?
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<blockquote data-quote="n2audio" data-source="post: 6860053" data-attributes="member: 540940"><p>I would go no lower than -3db tones for DMM gain settings.</p><p></p><p>I use 0dB, but I understand why someone might want to use -3.</p><p></p><p>In the past I have set them by ear then measured with a DMM and 0db just to see if they are very close, and they were.</p><p></p><p>I frequently load music files in adobe audition which monitors db levels of the signal. MOST songs I have looked at reach 0db at some point, and some exceed that (clip) frequently, although the average dB level of the entire song is often -10db or less.</p><p></p><p>I agree with RLJ. It's not as big of a deal as some people make it.</p><p></p><p>You don't need an o-scope, clamp meter, rms meter, flux capacitor, and a super dooper gain setter tool.</p><p></p><p>Set them somewhere reasonable. Use some common sense to get the subs to blend with the mains.</p><p></p><p>Then listen as you please. If you hear a hint of distortion here and there, turn it down a bit. If you hear no distortion and you think the speakers/subs have more to give - turn them up a bit.</p><p></p><p>There's really no "right" way for them to be set. There's "what sounds good" and "within reason".</p></blockquote><p></p>
[QUOTE="n2audio, post: 6860053, member: 540940"] I would go no lower than -3db tones for DMM gain settings. I use 0dB, but I understand why someone might want to use -3. In the past I have set them by ear then measured with a DMM and 0db just to see if they are very close, and they were. I frequently load music files in adobe audition which monitors db levels of the signal. MOST songs I have looked at reach 0db at some point, and some exceed that (clip) frequently, although the average dB level of the entire song is often -10db or less. I agree with RLJ. It's not as big of a deal as some people make it. You don't need an o-scope, clamp meter, rms meter, flux capacitor, and a super dooper gain setter tool. Set them somewhere reasonable. Use some common sense to get the subs to blend with the mains. Then listen as you please. If you hear a hint of distortion here and there, turn it down a bit. If you hear no distortion and you think the speakers/subs have more to give - turn them up a bit. There's really no "right" way for them to be set. There's "what sounds good" and "within reason". [/QUOTE]
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what the difference between 0db, -3db, -6db etc test tones?
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