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<blockquote data-quote="Ivan Beaver" data-source="post: 137987" data-attributes="member: 30"><p>Re: dB calculations</p><p></p><p></p><p>Personally I do like the 2.83V-and that is what we do.</p><p></p><p>The idea of 1watt- simply is not true-since the impedance varies quite a bit over the response of the loudspeaker. </p><p></p><p>Even in your example-you apply a SINGLE VOLTAGE and you are not varying it with freq to maintain the "1 watt" specified.</p><p></p><p>And it can be a bit more confusing if the impedance happens to be 6 ohms or so.</p><p></p><p>I prefer to show the impedance vs freq and the magnitude vs freq response. </p><p></p><p>With a constant 2.83V to all products, it gives (in my opinion) a better idea of real sensitivity.</p><p></p><p>With that the educated user can determine what they feel the specs should be, and not rely on the "simple numbers" that may or may not give a real indication as to the real performance of the loudspeaker in question.</p><p></p><p>HOWEVER, either way is MUCH better than just a "simple number" and no idea where it came from, which is my BIG gripe.</p><p></p><p>In MY opinion-those that provide just a "simple number" are trying to hide something.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 137987, member: 30"] Re: dB calculations Personally I do like the 2.83V-and that is what we do. The idea of 1watt- simply is not true-since the impedance varies quite a bit over the response of the loudspeaker. Even in your example-you apply a SINGLE VOLTAGE and you are not varying it with freq to maintain the "1 watt" specified. And it can be a bit more confusing if the impedance happens to be 6 ohms or so. I prefer to show the impedance vs freq and the magnitude vs freq response. With a constant 2.83V to all products, it gives (in my opinion) a better idea of real sensitivity. With that the educated user can determine what they feel the specs should be, and not rely on the "simple numbers" that may or may not give a real indication as to the real performance of the loudspeaker in question. HOWEVER, either way is MUCH better than just a "simple number" and no idea where it came from, which is my BIG gripe. In MY opinion-those that provide just a "simple number" are trying to hide something. [/QUOTE]
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