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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="sal mirabile" data-source="post: 216282" data-attributes="member: 4446"><p>Hey Stef, I really should've included all that info, apologies. I don't have the graphs anymore as i didn't save anything like an idiot!</p><p></p><p>measurement setup:</p><p>MacBook pro with REW, external audio interface which the ECM8000 is plugged into and then the audio interface going out into my Behringer x32.</p><p></p><p>Filters:</p><p>DCX464 (using Convair passive crossover) - FIR Sinc highpass @ 675hz</p><p>12ND930 - IIR lowpass LR-36 @ 725hz - highpass BW-48 @ 96hz</p><p></p><p>The reason for not using FIR for the bass drivers is because the active crossover I'm using (t-racks FIR 408 from Thomann) will only allow either both low and high passes to be FIR or IIR but the main issue is that i can't go lower than 150hz in FIR mode. Then again the drop offs are happening way after the crossovers. </p><p></p><p>The mic is not calibrated.</p><p></p><p>I wonder if the Convair passive crossover is faulty in some way? it's either that or the mic....i can't really think of anything else that could be going wrong</p></blockquote><p></p>
[QUOTE="sal mirabile, post: 216282, member: 4446"] Hey Stef, I really should've included all that info, apologies. I don't have the graphs anymore as i didn't save anything like an idiot! measurement setup: MacBook pro with REW, external audio interface which the ECM8000 is plugged into and then the audio interface going out into my Behringer x32. Filters: DCX464 (using Convair passive crossover) - FIR Sinc highpass @ 675hz 12ND930 - IIR lowpass LR-36 @ 725hz - highpass BW-48 @ 96hz The reason for not using FIR for the bass drivers is because the active crossover I'm using (t-racks FIR 408 from Thomann) will only allow either both low and high passes to be FIR or IIR but the main issue is that i can't go lower than 150hz in FIR mode. Then again the drop offs are happening way after the crossovers. The mic is not calibrated. I wonder if the Convair passive crossover is faulty in some way? it's either that or the mic....i can't really think of anything else that could be going wrong [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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