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<blockquote data-quote="n2audio" data-source="post: 8701542" data-attributes="member: 540940"><p>Are you using Pro?</p><p>I found this in the help section:</p><p></p><p></p><p>The suggested procedure for entering driver parameters is following (check first that "Auto calculate unknowns" option is checked):</p><p></p><p>1. Enter <strong>Mms</strong> and <strong>Cms</strong></p><p></p><p>This gives <strong>fs</strong>. If either is not available, then enter <strong>fs</strong> and other parameter.</p><p></p><p>2. Enter <strong>Sd</strong>, <strong>Bl</strong> and <strong>Re</strong></p><p></p><p>Now, you should get all but <strong>Qms</strong> (and <strong>Qts</strong>), <strong>Vas</strong>. Please note that Vas may not match exactly what is specified by manufacturer, because exact value of Vas depends on environmental parameters. See <a href="https://www.caraudio.com/faq/faq.html" target="_blank">FAQ</a>.</p><p></p><p>3. Enter <strong>Rms</strong> or <strong>Qms</strong>.</p><p></p><p>Either one will do, although I tend to prefer <strong>Qms</strong> over <strong>Rms</strong>, because it can usually be measured in driver measurement procedures.</p><p></p><p>4. Enter <strong>Hc</strong>, <strong>Hg</strong> and <strong>Pe</strong>.</p><p></p><p>If <strong>Hc</strong> or <strong>Hg</strong> or either is available, then enter <strong>Xmax</strong> and optionally either <strong>Hc</strong> or <strong>Hg</strong> if available.</p><p></p><p>5. Enter number of voicecoils.</p><p></p><p>This procedure is most accurate. Also note that it also calculates true SPL (1W/1m) value. So it might not match the marketing SPL value, which is generally somewhat vague. Not in all cases, though.</p><p></p><p>6. Correct <strong>Znom</strong>, if necessary.</p></blockquote><p></p>
[QUOTE="n2audio, post: 8701542, member: 540940"] Are you using Pro? I found this in the help section: The suggested procedure for entering driver parameters is following (check first that "Auto calculate unknowns" option is checked): 1. Enter [B]Mms[/B] and [B]Cms[/B] This gives [B]fs[/B]. If either is not available, then enter [B]fs[/B] and other parameter. 2. Enter [B]Sd[/B], [B]Bl[/B] and [B]Re[/B] Now, you should get all but [B]Qms[/B] (and [B]Qts[/B]), [B]Vas[/B]. Please note that Vas may not match exactly what is specified by manufacturer, because exact value of Vas depends on environmental parameters. See [URL='https://www.caraudio.com/faq/faq.html']FAQ[/URL]. 3. Enter [B]Rms[/B] or [B]Qms[/B]. Either one will do, although I tend to prefer [B]Qms[/B] over [B]Rms[/B], because it can usually be measured in driver measurement procedures. 4. Enter [B]Hc[/B], [B]Hg[/B] and [B]Pe[/B]. If [B]Hc[/B] or [B]Hg[/B] or either is available, then enter [B]Xmax[/B] and optionally either [B]Hc[/B] or [B]Hg[/B] if available. 5. Enter number of voicecoils. This procedure is most accurate. Also note that it also calculates true SPL (1W/1m) value. So it might not match the marketing SPL value, which is generally somewhat vague. Not in all cases, though. 6. Correct [B]Znom[/B], if necessary. [/QUOTE]
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