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<blockquote data-quote="Buck" data-source="post: 8753953" data-attributes="member: 591582">Because what happens is that people who aren&#039;t familiar with audio get their subs, and they try to beat the crap out of them immediately across a wide bandwidth.&nbsp; I&#039;ve seen people blow subs from not letting them break in.&nbsp; I don&#039;t remember all facts of every system that did that, but a lot of times it&#039;s higher powered woofers that are really stiff.&nbsp; If you get a brand new woofer, especially a high powered one, and you immediately go try to drop below 30 hz on full tilt, that usually results in problems.&nbsp; That&#039;s one way we would try to keep inexperienced people from blowing their subs; you set the subsonic artificially high, and get them to come back in a few weeks or so and you can drop down that subsonic to where it ultimately should be.Woofers can blow because the coil isn&#039;t moving enough to cool itself inside of the motor.&nbsp; So, when your woofer is really stiff, it basically doesn&#039;t move enough on the low notes, and that causes excessive heat buildup in the coil.&nbsp; Coil movement is essential to cooling, in specific situations.&nbsp; If the woofer was broken in, say in a box for it, the excursion on xxxx amount of watts will tend to be much greater as the woofer breaks in, especially on the low notes.&nbsp; Without that movement, the coil heats up a ton, unnecessarily and dangerously so, in some cases.&nbsp; But there&#039;s a ton of factors to that, it&#039;s very hard to blame any system failure specifically on one item; audio is complicated, many things can cause issues.You&#039;ve gotta let some of these woofers stretch out themselves, before you go super hard on them.&nbsp; I&#039;ve just seen it happen like a playbook.&nbsp; You know when a customer is going to blow a new sub, you can just see it in their eyes that they are not going to listen about your advice about break in.&nbsp; We&#039;ve had people literally come back an hour or two later with blown subs lol.&nbsp; These were good systems, good electrical, good boxes, good signal, etc.&nbsp; Maybe their songs were bad quality, but it probably had more to do with the volume knob.</blockquote>

[QUOTE="Buck, post: 8753953, member: 591582"] Because what happens is that people who aren't familiar with audio get their subs, and they try to beat the crap out of them immediately across a wide bandwidth. I've seen people blow subs from not letting them break in. I don't remember all facts of every system that did that, but a lot of times it's higher powered woofers that are really stiff. If you get a brand new woofer, especially a high powered one, and you immediately go try to drop below 30 hz on full tilt, that usually results in problems. That's one way we would try to keep inexperienced people from blowing their subs; you set the subsonic artificially high, and get them to come back in a few weeks or so and you can drop down that subsonic to where it ultimately should be. Woofers can blow because the coil isn't moving enough to cool itself inside of the motor. So, when your woofer is really stiff, it basically doesn't move enough on the low notes, and that causes excessive heat buildup in the coil. Coil movement is essential to cooling, in specific situations. If the woofer was broken in, say in a box for it, the excursion on xxxx amount of watts will tend to be much greater as the woofer breaks in, especially on the low notes. Without that movement, the coil heats up a ton, unnecessarily and dangerously so, in some cases. But there's a ton of factors to that, it's very hard to blame any system failure specifically on one item; audio is complicated, many things can cause issues. You've gotta let some of these woofers stretch out themselves, before you go super hard on them. I've just seen it happen like a playbook. You know when a customer is going to blow a new sub, you can just see it in their eyes that they are not going to listen about your advice about break in. We've had people literally come back an hour or two later with blown subs lol. These were good systems, good electrical, good boxes, good signal, etc. Maybe their songs were bad quality, but it probably had more to do with the volume knob. [/QUOTE]

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