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<blockquote data-quote="Peter Morris" data-source="post: 206166" data-attributes="member: 652"><p>5 - As a result of the pre-conditioning the peak is reduced (2[SUP]nd[/SUP] diagram on the bottom); however once processed by the crossover (which has the opposite pre-conditioning / phase) the peak and wave shape is restored to match the input shape and peak (acoustic sum).</p><p></p><p>Note what Phil said -<em> “a side effect of the pre-warping on highly organized signals</em> [original signal] <em>like transients is that the peak amplitude of the signal is usually reduced after pre-warping"</em></p><p></p><p>2 - Without the preconditioning the crossover phase response results in the low frequency and high frequency peaks not being aligned any more and the maximum amplitude is reduced.</p><p></p><p>This assumes that music signals are not random, rather “highly organized” and accordingly have their peaks aligned so to speak.</p><p></p><p>In terms of amplifier voltage – if the low and high frequency bits have the same amplitude, when they are aligned the voltage is double, this requires an amplifier of 4 times the powers; however the energy is the same … think in terms of the area under the curve(s).</p><p></p><p>In practice, if you get everything correct and preserve the transients and wave shape of the original signal your speaker will be able to reproduce a square wave ... see the very first post on the DIY <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Peter Morris, post: 206166, member: 652"] 5 - As a result of the pre-conditioning the peak is reduced (2[SUP]nd[/SUP] diagram on the bottom); however once processed by the crossover (which has the opposite pre-conditioning / phase) the peak and wave shape is restored to match the input shape and peak (acoustic sum). Note what Phil said -[I] “a side effect of the pre-warping on highly organized signals[/I] [original signal] [I]like transients is that the peak amplitude of the signal is usually reduced after pre-warping"[/I] 2 - Without the preconditioning the crossover phase response results in the low frequency and high frequency peaks not being aligned any more and the maximum amplitude is reduced. This assumes that music signals are not random, rather “highly organized” and accordingly have their peaks aligned so to speak. In terms of amplifier voltage – if the low and high frequency bits have the same amplitude, when they are aligned the voltage is double, this requires an amplifier of 4 times the powers; however the energy is the same … think in terms of the area under the curve(s). In practice, if you get everything correct and preserve the transients and wave shape of the original signal your speaker will be able to reproduce a square wave ... see the very first post on the DIY :-) [/QUOTE]
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