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<blockquote data-quote="thch" data-source="post: 1846833" data-attributes="member: 562032"><p>I would propose an appendum to this guide to detail alternative methods for tonal balence. the guide above sets the highpass to a value which is safe, then sets the lowpass based upon this setting. realistically the process will be more iteritive, as the settings are not independent.</p><p></p><p>for example, once you decide to lower the level of the speakers (last part, level matching), you would probably want to reconcider the highpass filter because at lower outputs the filter could be lowered. likewise, lowering the output of the sub may reduce some of the distortion which made the bass sound funny, allowing it to have a lower SSF and a high LPF.</p><p></p><p>this would be especially useful to know if the HPF was set to 120hz and the LPF only set at 60hz. in such a case to get good sound, it may be required to lower the volume of both the woofer and the speakers to allow better blending. eg, the woofer will sound localized above 100hz, and the speakers will distort below 120hz, so the speakers volume must be lowered to allow at least a 100hz cutoff, but now the woofers are overpowering so the volume gets lowered and the LPF set to 100hz.</p><p></p><p>i'm not entirely sure setting SSF by calculation is the ideal thing. it may be easier just to use low frequencies and lower the SSF from its maximum setting until the excursion is too high. this gives optimal results that are based upon the system, and not based upon some estimate like Fb*0.75. for example, someone using a high excursion woofer on a lower power amplifier may not have issues with overexcursion ever, in which case the SSF just removes some of the bass needlessly.</p><p></p><p>this is not to say that I am displeased by this guide. it is IMO more practical then some other guides that say that the DMM is a good method to set gains, and an OScope is never wrong...</p><p></p><p>It is my opinion that the setting of a system is highly based upon the goals of the user. it is also my opinion that the process will be iterative. with so many options, it will be impossible to try everything, but with resolve, it should be possible to set the system to a near optimal setting with only a few changes from the base settings.</p></blockquote><p></p>
[QUOTE="thch, post: 1846833, member: 562032"] I would propose an appendum to this guide to detail alternative methods for tonal balence. the guide above sets the highpass to a value which is safe, then sets the lowpass based upon this setting. realistically the process will be more iteritive, as the settings are not independent. for example, once you decide to lower the level of the speakers (last part, level matching), you would probably want to reconcider the highpass filter because at lower outputs the filter could be lowered. likewise, lowering the output of the sub may reduce some of the distortion which made the bass sound funny, allowing it to have a lower SSF and a high LPF. this would be especially useful to know if the HPF was set to 120hz and the LPF only set at 60hz. in such a case to get good sound, it may be required to lower the volume of both the woofer and the speakers to allow better blending. eg, the woofer will sound localized above 100hz, and the speakers will distort below 120hz, so the speakers volume must be lowered to allow at least a 100hz cutoff, but now the woofers are overpowering so the volume gets lowered and the LPF set to 100hz. i'm not entirely sure setting SSF by calculation is the ideal thing. it may be easier just to use low frequencies and lower the SSF from its maximum setting until the excursion is too high. this gives optimal results that are based upon the system, and not based upon some estimate like Fb*0.75. for example, someone using a high excursion woofer on a lower power amplifier may not have issues with overexcursion ever, in which case the SSF just removes some of the bass needlessly. this is not to say that I am displeased by this guide. it is IMO more practical then some other guides that say that the DMM is a good method to set gains, and an OScope is never wrong... It is my opinion that the setting of a system is highly based upon the goals of the user. it is also my opinion that the process will be iterative. with so many options, it will be impossible to try everything, but with resolve, it should be possible to set the system to a near optimal setting with only a few changes from the base settings. [/QUOTE]
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