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Damping Factor - Actual listening tests?
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<blockquote data-quote="Jason Lavoie" data-source="post: 145745" data-attributes="member: 159"><p>Re: Damping Factor - Actual listening tests?</p><p></p><p></p><p></p><p>I'm fixated on it because it's a spec that people seem to hold as important (in regards to wire gauge and length) but nobody seems to know anything more than 'higher is better'</p><p></p><p></p><p></p><p>I get the voltage divider, and it is easy to calculate how much power gets lost in the wire vs how much gets delivered to the speaker.</p><p>I'm only just now (just this second as I write this) having the light bulb go off re: the voltage divider is different at different frequencies (because of the speaker's impedance curve)</p><p></p><p>I get it now. so if the speaker's graph shows that the impedance is 8 ohms at 100hz and 80 ohms at 2k then obviously 2k will hardly be affected by a long cable while 100hz will be attenuated a lot more.</p><p></p><p>Now that i understand this it sounds like something that could be 100% counteracted with EQ. I had visions of the effect being something more dynamic and time dependent the way people talk about DF.</p><p></p><p>So correct me if I'm wrong here: if the power loss due to the cable is acceptable, and we're going to measure the system with Smaart and shape the response in-situ then the wire gauge (and hence the DF) can be ignored within reason?</p><p></p><p></p><p>Maybe I've had this all backwards. I had pictured it to be more of a consideration for fixed installs where wires are often long, but in reality I guess it is more of a concern for people who are deploying the same system but with different speaker cable lengths every weekend and expecting it to have the same response..</p><p></p><p></p><p></p><p>I see that now. thanks for pushing me in the right direction!</p><p></p><p>Jason</p></blockquote><p></p>
[QUOTE="Jason Lavoie, post: 145745, member: 159"] Re: Damping Factor - Actual listening tests? I'm fixated on it because it's a spec that people seem to hold as important (in regards to wire gauge and length) but nobody seems to know anything more than 'higher is better' I get the voltage divider, and it is easy to calculate how much power gets lost in the wire vs how much gets delivered to the speaker. I'm only just now (just this second as I write this) having the light bulb go off re: the voltage divider is different at different frequencies (because of the speaker's impedance curve) I get it now. so if the speaker's graph shows that the impedance is 8 ohms at 100hz and 80 ohms at 2k then obviously 2k will hardly be affected by a long cable while 100hz will be attenuated a lot more. Now that i understand this it sounds like something that could be 100% counteracted with EQ. I had visions of the effect being something more dynamic and time dependent the way people talk about DF. So correct me if I'm wrong here: if the power loss due to the cable is acceptable, and we're going to measure the system with Smaart and shape the response in-situ then the wire gauge (and hence the DF) can be ignored within reason? Maybe I've had this all backwards. I had pictured it to be more of a consideration for fixed installs where wires are often long, but in reality I guess it is more of a concern for people who are deploying the same system but with different speaker cable lengths every weekend and expecting it to have the same response.. I see that now. thanks for pushing me in the right direction! Jason [/QUOTE]
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