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Junior Varsity
matching amp with speakers
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<blockquote data-quote="Phil Graham" data-source="post: 122313" data-attributes="member: 430"><p>Re: matching amp with speakers</p><p></p><p></p><p></p><p>To expand slightly, the Klippel power testing can utilize very advanced multi-tone stimuli:</p><ul> <li data-xf-list-type="ul">The first tone is a very low frequency (1Hz'ish) tone to ascertain the dc resistance of the voice coil as a proxy for temperature.</li> <li data-xf-list-type="ul">The second tone is a high frequency (e.g. 2kHz) tone that dumps the heating power into the voicecoil. The idea is to heat the voicecoil at a frequency that doesn't drive cone movement, and therefore cooling.</li> <li data-xf-list-type="ul">The third stimuli can be used to drive cone motion at a specific frequency, or range of frequencies, to look at the effects of cone and voice coil movement on cooling behavior.</li> </ul></blockquote><p></p>
[QUOTE="Phil Graham, post: 122313, member: 430"] Re: matching amp with speakers To expand slightly, the Klippel power testing can utilize very advanced multi-tone stimuli: [LIST] [*]The first tone is a very low frequency (1Hz'ish) tone to ascertain the dc resistance of the voice coil as a proxy for temperature. [*]The second tone is a high frequency (e.g. 2kHz) tone that dumps the heating power into the voicecoil. The idea is to heat the voicecoil at a frequency that doesn't drive cone movement, and therefore cooling. [*]The third stimuli can be used to drive cone motion at a specific frequency, or range of frequencies, to look at the effects of cone and voice coil movement on cooling behavior. [/LIST] [/QUOTE]
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matching amp with speakers
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