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Junior Varsity
IPR2 7500 noise floor question for users
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<blockquote data-quote="Ivan Beaver" data-source="post: 142032" data-attributes="member: 30"><p>Re: IPR2 7500 noise floor question for users</p><p></p><p></p><p>I am not sure what you are referring to, but whatever it is, the answer is no.</p><p>OK EDIT</p><p>I was just thinking about my answer.</p><p></p><p>30dB (as stated in the question) is a meaningless number. dB is a RATIO-that is all. Without some sort of other designator who know what it means.</p><p></p><p>For example, 2 different uses of dB have been used in this thread. One is dB SPL (which I think the question is referring to) and the dB difference between 2 different voltages.</p><p></p><p>I was thinking in terms of the dB voltage difference, while I realized the question was about dB SPL.</p><p></p><p>Hence the reason for the "little things" that DO make a difference.</p><p></p><p>And to "reanswer" the question.</p><p></p><p>If the voltage stays the same, then the noise level will increase UP TO 6dB at some some freq. At other freq it will be lower because of the cancellation of multiple devices.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 142032, member: 30"] Re: IPR2 7500 noise floor question for users I am not sure what you are referring to, but whatever it is, the answer is no. OK EDIT I was just thinking about my answer. 30dB (as stated in the question) is a meaningless number. dB is a RATIO-that is all. Without some sort of other designator who know what it means. For example, 2 different uses of dB have been used in this thread. One is dB SPL (which I think the question is referring to) and the dB difference between 2 different voltages. I was thinking in terms of the dB voltage difference, while I realized the question was about dB SPL. Hence the reason for the "little things" that DO make a difference. And to "reanswer" the question. If the voltage stays the same, then the noise level will increase UP TO 6dB at some some freq. At other freq it will be lower because of the cancellation of multiple devices. [/QUOTE]
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