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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: 205568" data-attributes="member: 10677"><p><strong><u>Marjan:</u></strong></p><p>Thanks. I have tried reversing the polarity on the VHF section only on the coax, and the dip between the HF and VHF got much worse(red) </p><p>.</p><p></p><p>[ATTACH]205569[/ATTACH]</p><p></p><p>Further, - the dip in the 650 Hz range is a bit strange also. When I use the same crossover settings on a DBX drive rack PA+ and a 4 channel powersoft amp, I have no dip at the crossover section. I am using 1.5ms delay on the BMS with the DBX and 1.8ms to get the best possible results on the powersoft dsp.:?: There must be something different with the way they translate the filters.</p><p></p><p><u><strong>Jason:</strong></u></p><p>Input to DSP settings would be very much appreciated <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~:smile:<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~:smile:<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />~:smile:. Do you also have the HE version of the BMS?</p><p></p><p>You're saying that you have -2.5db on the coax, and is your mid section also 2 x 8 Ohm in parallel?</p><p></p><p>I get your point about chasing the straight line FR. I tried it and as you I found that it didn't sound good.</p><p></p><p>In the FR that I have demonstrated in my latest posts I have aimed for smooth HF/VHF with a small rise. The smooth HF/VHF - with no sharp dips or peaks I found was very important. If something goes wrong up there, - Hi-hats, metal etc. start sounding sizzly, shrill.</p><p>The dip in the 4.8Khz is also important to make up for.</p><p></p><p>[ATTACH]205571[/ATTACH]</p></blockquote><p></p>
[QUOTE="Andy Turner, post: 205568, member: 10677"] [B][U]Marjan:[/U][/B] Thanks. I have tried reversing the polarity on the VHF section only on the coax, and the dip between the HF and VHF got much worse(red) . [ATTACH=JSON]205569.vB5-nodeid=205569[/ATTACH] Further, - the dip in the 650 Hz range is a bit strange also. When I use the same crossover settings on a DBX drive rack PA+ and a 4 channel powersoft amp, I have no dip at the crossover section. I am using 1.5ms delay on the BMS with the DBX and 1.8ms to get the best possible results on the powersoft dsp.:?: There must be something different with the way they translate the filters. [U][B]Jason:[/B][/U] Input to DSP settings would be very much appreciated :)~:-)~:smile::)~:-)~:smile::)~:-)~:smile:. Do you also have the HE version of the BMS? You're saying that you have -2.5db on the coax, and is your mid section also 2 x 8 Ohm in parallel? I get your point about chasing the straight line FR. I tried it and as you I found that it didn't sound good. In the FR that I have demonstrated in my latest posts I have aimed for smooth HF/VHF with a small rise. The smooth HF/VHF - with no sharp dips or peaks I found was very important. If something goes wrong up there, - Hi-hats, metal etc. start sounding sizzly, shrill. The dip in the 4.8Khz is also important to make up for. [ATTACH=JSON]205571.vB5-nodeid=205571[/ATTACH] [/QUOTE]
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