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DIY & Tutorials
DIY For Audio
CV sealed sub build
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<blockquote data-quote="Timber_MG" data-source="post: 50469" data-attributes="member: 18"><p>When pushing limits, the first course of action is a high pass filter. I usually opt for a 4th order filter for sub woofers. EQ can call for some scary power figures, especially with low system efficiency.</p><p></p><p>Sealed enclosures (especially equalized) have one rarely realized feature: they have very high impedance around resonance (resulting in greater efficiency around resonance than some might think). However once you go below that, the current demands on the amplifier go up significantly. Lower fs (even if it doesn't seem significant on a FR plot) has a big influence on current drawn from an amplifier in a narrow-band application like a sub woofer.</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 50469, member: 18"] When pushing limits, the first course of action is a high pass filter. I usually opt for a 4th order filter for sub woofers. EQ can call for some scary power figures, especially with low system efficiency. Sealed enclosures (especially equalized) have one rarely realized feature: they have very high impedance around resonance (resulting in greater efficiency around resonance than some might think). However once you go below that, the current demands on the amplifier go up significantly. Lower fs (even if it doesn't seem significant on a FR plot) has a big influence on current drawn from an amplifier in a narrow-band application like a sub woofer. [/QUOTE]
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DIY & Tutorials
DIY For Audio
CV sealed sub build
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