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DIY For Audio
HiVi Computer speakers
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<blockquote data-quote="Timber_MG" data-source="post: 217099" data-attributes="member: 18"><p>If an op-amp based filter circuit is doable, you could realy go to town. At the DIY showcase I was running a semi-active filter with passive notch (tuned by measurement) and passive BSC (full 6dB) and active LR-24 crossover at around 180Hz off the top of my head. The BSC could just as well have been done actively.</p><p></p><p>There is nothing wrong with a passive notch filter, it's an LCR series notch circuit that acts as a resistor over a narrow bandwidth and if tuned correctly compensates for a peak in response at that frequency. Also, PC soundcards can do a fairly decent job of an active crossover thesedays for a 2.1 setup.</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 217099, member: 18"] If an op-amp based filter circuit is doable, you could realy go to town. At the DIY showcase I was running a semi-active filter with passive notch (tuned by measurement) and passive BSC (full 6dB) and active LR-24 crossover at around 180Hz off the top of my head. The BSC could just as well have been done actively. There is nothing wrong with a passive notch filter, it's an LCR series notch circuit that acts as a resistor over a narrow bandwidth and if tuned correctly compensates for a peak in response at that frequency. Also, PC soundcards can do a fairly decent job of an active crossover thesedays for a 2.1 setup. [/QUOTE]
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DIY & Tutorials
DIY For Audio
HiVi Computer speakers
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