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<blockquote data-quote="Straegen" data-source="post: 3178458" data-attributes="member: 578770">How long is very subjective and often depends on the speaker design.&nbsp; You can usually tell where a speaker was meant to run by looking at the frequency curve.&nbsp; In my example the Dynaudio will play below 100hz without an issue, but the curve starts to drop off at around 100hz which means you get weaker bass as you drop below 80hz.&nbsp; The closer you go to 20hz the more juice you have to hit the speaker with to reproduce the sound.&nbsp; Cross below 20hz and a truckload of speakers get torn up pretty fast.&nbsp;&nbsp; There is a reason subwoofers are built like small tanks and they still wear out over time.&nbsp; So if you take a tweeter and run 50hz on it, it won&#039;t last as long as it wasn&#039;t designed to run in that frequency.Most of the time, I tell people to match the seperates as best they can and use the frequency curve to help naturally roll from one seperate to another.&nbsp; Usually this means a sub is running 20 to 60 to 80 then move up about 10-20hz start the midbass and depending on the speaker/slope go up from there.&nbsp; Eliminating overlap will often result in a much cleaner sound.&nbsp; I have heard countless systems that run one cross over right next to the other and that usually means a muddier sound.</blockquote>

[QUOTE="Straegen, post: 3178458, member: 578770"] How long is very subjective and often depends on the speaker design. You can usually tell where a speaker was meant to run by looking at the frequency curve. In my example the Dynaudio will play below 100hz without an issue, but the curve starts to drop off at around 100hz which means you get weaker bass as you drop below 80hz. The closer you go to 20hz the more juice you have to hit the speaker with to reproduce the sound. Cross below 20hz and a truckload of speakers get torn up pretty fast. There is a reason subwoofers are built like small tanks and they still wear out over time. So if you take a tweeter and run 50hz on it, it won't last as long as it wasn't designed to run in that frequency. Most of the time, I tell people to match the seperates as best they can and use the frequency curve to help naturally roll from one seperate to another. Usually this means a sub is running 20 to 60 to 80 then move up about 10-20hz start the midbass and depending on the speaker/slope go up from there. Eliminating overlap will often result in a much cleaner sound. I have heard countless systems that run one cross over right next to the other and that usually means a muddier sound. [/QUOTE]

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