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Junior Varsity
JBL SRX / QSC PL236 underpowered?
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<blockquote data-quote="Jonathan Betts" data-source="post: 82147" data-attributes="member: 164"><p>Re: JBL SRX / QSC PL236 underpowered?</p><p></p><p>These are the tunings from the DR 4800, very similar to the DR 260. I use these settings as a starting point with Crown ITechs. </p><p> </p><p>My bandpass gains are a little different than the ones listed below</p><p></p><p>718:</p><p></p><p>HPF 30Hz But 18</p><p>LPF 88Hz LR 48</p><p></p><p></p><p>715 low/mid (.208ms) delay</p><p>-1.7db gain</p><p>HPF 91Hz LR 48</p><p>LPF 1.14kHz LR 48</p><p></p><p>Mid/high</p><p></p><p>Invert polarity </p><p>-16db gain</p><p></p><p>HPF 1.12kHz LR 48</p><p></p><p></p><p></p><p>Eq filters</p><p></p><p>718:</p><p></p><p>44.71 Hz 1.5db Q 4.915</p><p>68.82Hz 2db Q 4.915</p><p></p><p>715:</p><p></p><p>Low mid</p><p></p><p>93.64Hz 3.5db Q2.922</p><p>183.72Hz 3db low pass shelving 6db octave filter</p><p>250Hz -2db Q 2.922</p><p>500Hz -1.5 db Q 0.92</p><p></p><p>Highs</p><p></p><p>1.62kHz -1.8db Q 1.738</p><p>2.38kHz -3db Q 4.133</p><p>5.55kHz -3db Q 4.13</p><p>12.7kHz 6.5db Q 2.457</p></blockquote><p></p>
[QUOTE="Jonathan Betts, post: 82147, member: 164"] Re: JBL SRX / QSC PL236 underpowered? These are the tunings from the DR 4800, very similar to the DR 260. I use these settings as a starting point with Crown ITechs. My bandpass gains are a little different than the ones listed below 718: HPF 30Hz But 18 LPF 88Hz LR 48 715 low/mid (.208ms) delay -1.7db gain HPF 91Hz LR 48 LPF 1.14kHz LR 48 Mid/high Invert polarity -16db gain HPF 1.12kHz LR 48 Eq filters 718: 44.71 Hz 1.5db Q 4.915 68.82Hz 2db Q 4.915 715: Low mid 93.64Hz 3.5db Q2.922 183.72Hz 3db low pass shelving 6db octave filter 250Hz -2db Q 2.922 500Hz -1.5 db Q 0.92 Highs 1.62kHz -1.8db Q 1.738 2.38kHz -3db Q 4.133 5.55kHz -3db Q 4.13 12.7kHz 6.5db Q 2.457 [/QUOTE]
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