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Component X-over ?'s
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<blockquote data-quote="squeak9798" data-source="post: 2528327" data-attributes="member: 555320"><p>I didn't write this, but it's probably the easiest to understand explaination I've seen;</p><p></p><p></p><p></p><p></p><p></p><p>If you place a 2ohm speaker on a passive xover designed for a 4ohm load, then the xover frequency would be cut in half (this is not desireable).</p><p></p><p>If the xover was intentionally designed to be mated with a 2ohm midwoofer and a 4ohm tweeter, for example, then when for frequencies within the mids passband the amplifier would see a 2ohm load and for frequencies within the tweeters passband it would see a 4ohm load.</p><p></p><p></p><p>If you connected them in parallel, the xover frequency would be cut in half. If you wired them in series, the xover frequency would be doubled.</p><p></p><p></p><p>Bad idea.</p><p></p><p>Depending on the design of the crossover, leaving one of the circuits open could result in the amplifier being presented with a dead short, consequently risking damage to the amplifier.</p><p></p><p></p><p>Sure.</p><p></p><p>There will be a limit where the components within the crossover can not handle the power being passed through them. But in normal circumstances, it isn't something the consumer should really "worry" about as it is likely much higher than the amount of power being applied to them.</p><p></p><p></p><p>Well, for one; see above. If you connect an improper impedance load for the xovers design, you will affect the xover frequency and as such the resulting response will not be desireable.</p><p></p><p>Likewise, all speakers will perform optimally with certain xover frequencies and slopes specific to each individual speaker. Mixing speakers with xover, even if impedances are taken into consideration, may not result in optimal performance or response from the speakers. Also, if you place a tweeter that requires a relatively high xover frequency and slope on a passive xover that has a lower-than-recommended slope or frequency; you risk damaging the tweeter.</p><p></p><p>Lastly; Xovers can do MUCH more than just offer differing slopes and xover frequencies. Many have built in impedance compensation (zobel networks), passive EQ circuits, notch filters, etc etc. All of which were designed to provide optimal performance from one specific speaker, and not necessarily any speaker you choose to place on the passive. Again, this is all about acheiving optimal performance from the speaker; and placing just "any" speaker on a specifically designed passive xover very well may not acheive this.</p></blockquote><p></p>
[QUOTE="squeak9798, post: 2528327, member: 555320"] I didn't write this, but it's probably the easiest to understand explaination I've seen; If you place a 2ohm speaker on a passive xover designed for a 4ohm load, then the xover frequency would be cut in half (this is not desireable). If the xover was intentionally designed to be mated with a 2ohm midwoofer and a 4ohm tweeter, for example, then when for frequencies within the mids passband the amplifier would see a 2ohm load and for frequencies within the tweeters passband it would see a 4ohm load. If you connected them in parallel, the xover frequency would be cut in half. If you wired them in series, the xover frequency would be doubled. Bad idea. Depending on the design of the crossover, leaving one of the circuits open could result in the amplifier being presented with a dead short, consequently risking damage to the amplifier. Sure. There will be a limit where the components within the crossover can not handle the power being passed through them. But in normal circumstances, it isn't something the consumer should really "worry" about as it is likely much higher than the amount of power being applied to them. Well, for one; see above. If you connect an improper impedance load for the xovers design, you will affect the xover frequency and as such the resulting response will not be desireable. Likewise, all speakers will perform optimally with certain xover frequencies and slopes specific to each individual speaker. Mixing speakers with xover, even if impedances are taken into consideration, may not result in optimal performance or response from the speakers. Also, if you place a tweeter that requires a relatively high xover frequency and slope on a passive xover that has a lower-than-recommended slope or frequency; you risk damaging the tweeter. Lastly; Xovers can do MUCH more than just offer differing slopes and xover frequencies. Many have built in impedance compensation (zobel networks), passive EQ circuits, notch filters, etc etc. All of which were designed to provide optimal performance from one specific speaker, and not necessarily any speaker you choose to place on the passive. Again, this is all about acheiving optimal performance from the speaker; and placing just "any" speaker on a specifically designed passive xover very well may not acheive this. [/QUOTE]
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