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Can someone Pls explain this to me...
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<blockquote data-quote="Shonver" data-source="post: 1103643" data-attributes="member: 34"><p>I believe the Bentleys use a ported enclosure. The difference between a ported box and a sealed box as regards cone excursion is that the woofer (cone) in a sealed enclosure is fully damped by the sealed volume throughout its operating bandwidth, while the box in the ported enclosure only does this down to the tuning frequency of the port. The port extends the low frequency response of the speaker to below what a sealed enclosure can do. However, the woofer unloads acoustically below the port resonance frequency and acts as if it is operating in free air, without box damping. Energy received by the speaker that is below port tuning frequency will cause the cone to excurse more than with signals at or above port resonance.</p><p></p><p>All things being equal, it can be deduced from the info given that the Krell has a higher low-frequency cut-off than the Emotiva, so the Emotiva is passing (amplifying) low frequency info that the Krell does not.</p><p></p><p>Ideally, a speaker should only be fed signals within its designed capability. There is no benefit in sending very low frequency info to the speaker that it may not be able to handle. This applies to all speakers. However, most users do not have such an option available to them. Your Krell is doing you a favour, but not the kind that is often assumed.</p></blockquote><p></p>
[QUOTE="Shonver, post: 1103643, member: 34"] I believe the Bentleys use a ported enclosure. The difference between a ported box and a sealed box as regards cone excursion is that the woofer (cone) in a sealed enclosure is fully damped by the sealed volume throughout its operating bandwidth, while the box in the ported enclosure only does this down to the tuning frequency of the port. The port extends the low frequency response of the speaker to below what a sealed enclosure can do. However, the woofer unloads acoustically below the port resonance frequency and acts as if it is operating in free air, without box damping. Energy received by the speaker that is below port tuning frequency will cause the cone to excurse more than with signals at or above port resonance. All things being equal, it can be deduced from the info given that the Krell has a higher low-frequency cut-off than the Emotiva, so the Emotiva is passing (amplifying) low frequency info that the Krell does not. Ideally, a speaker should only be fed signals within its designed capability. There is no benefit in sending very low frequency info to the speaker that it may not be able to handle. This applies to all speakers. However, most users do not have such an option available to them. Your Krell is doing you a favour, but not the kind that is often assumed. [/QUOTE]
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Audio and Video Talk
General Discussion
Can someone Pls explain this to me...
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