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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="Andy Turner" data-source="post: 204106" data-attributes="member: 10677"><p>Peter, Mark and Mark, Thank you.</p><p></p><p>Peter, - I was hoping to get away with just a few PEQ's.</p><p>Could I be making things worse adding more PEQ's making the response having more sharp(hi-Q) peaks and dips? I hear different opinions on this subject. - The audibility of resonances?</p><p></p><p>Yes I am using the passive filter from BMS.</p><p>The peak at 10Khz was next on my list :0) I need to investigate if this could be due to a faulty mike?</p><p></p><p>According to BMS curves, the VHF response with passive filter is a bit high though.</p><p></p><p>Maybe the VHF needs a few db attenuation? L-PAD before the VHF driver maybe?</p><p></p><p>The drop at about 5khz, could that be due to problems with phase at HF and VHF XO ?</p><p>Should I try to reverse polarity on the VHF driver? I just followed the +/- printed on the filter to the drivers. </p><p></p><p>I will do both ground and also near field measurements on the low for reference - thanks, but I was hoping to have that one great measurement to get timing/phase alignment and for getting the sound balance between low and high at least 'in the ballpark'.</p><p></p><p>More measurements. Just waiting for a pause in the rain :0)</p></blockquote><p></p>
[QUOTE="Andy Turner, post: 204106, member: 10677"] Peter, Mark and Mark, Thank you. Peter, - I was hoping to get away with just a few PEQ's. Could I be making things worse adding more PEQ's making the response having more sharp(hi-Q) peaks and dips? I hear different opinions on this subject. - The audibility of resonances? Yes I am using the passive filter from BMS. The peak at 10Khz was next on my list :0) I need to investigate if this could be due to a faulty mike? According to BMS curves, the VHF response with passive filter is a bit high though. Maybe the VHF needs a few db attenuation? L-PAD before the VHF driver maybe? The drop at about 5khz, could that be due to problems with phase at HF and VHF XO ? Should I try to reverse polarity on the VHF driver? I just followed the +/- printed on the filter to the drivers. I will do both ground and also near field measurements on the low for reference - thanks, but I was hoping to have that one great measurement to get timing/phase alignment and for getting the sound balance between low and high at least 'in the ballpark'. More measurements. Just waiting for a pause in the rain :0) [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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