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<blockquote data-quote="thylantyr" data-source="post: 1250302" data-attributes="member: 560358"><p><strong>are you saying that you have tweeters running in their own seperate amplifier channel?</strong></p><p></p><p>The line array I'm running is fully active, the tweeters are driven by a 2ch home</p><p></p><p>amp. The midranges are driven by a 2ch pro audio amp.</p><p></p><p><strong>this is because you have an active crossover right?</strong></p><p></p><p>I'm using the DCX</p><p></p><p><strong>each frequency gets its own amplifier channel...so...if i have two 8 ohm drivers, a passive crossover WITH zobel, wired in parallel then that channel of the amp would see 4 ohm?</strong></p><p></p><p>You are confusing an active setup with passive.</p><p></p><p>A passive setup is;</p><p></p><p>Amplifier output -&gt; passive crossover -&gt; tweeter</p><p></p><p>Same amplifier output -&gt; passive crossover -&gt; midrange</p><p></p><p>Same amplifier output -&gt; passive crossover -&gt; woofer</p><p></p><p>If the drivers are 8 Ohm nominal, amplifier 'sees' 8 Ohm nominal.</p><p></p><p>An active setup is;</p><p></p><p>Active crossover [high pass output] -&gt; Amplifier #1 -&gt; tweeter</p><p></p><p>Active crossover [bandpass output] -&gt; Amplifier #2 -&gt; midrange</p><p></p><p>Active crossover [low pass output] -&gt; Amplifier #3 -&gt; woofer</p><p></p><p>The drivers are directly connected to the amplifier. The active crossover</p><p></p><p>feeds each amp the proper frequency range set by you. The amplifier 'sees'</p><p></p><p>the driver impedance.</p><p></p><p>You can also do that with a passive setup, but it's dumb;</p><p></p><p>Ampifier #1 -&gt; passive crossover -&gt; tweeter</p><p></p><p>Amplifier #2 -&gt; passive crossover -&gt; midrange</p><p></p><p>Amplifier #3 -&gt; passive crossover -&gt; woofer</p><p></p><p>Or</p><p></p><p>Amplifier #1 -&gt; passive crossover -&gt; tweeter</p><p></p><p>Amplifier #1 -&gt; passive crossover -&gt; midrange</p><p></p><p>Amplifier #2 -&gt; passive crossover -&gt; woofer</p><p></p><p>Amplifier #1 can be whimpy and still perform good while amplifier #2 needs</p><p></p><p>more balls to drive the woofers, perhaps it can be a higher powered amp.</p><p></p><p>Or</p><p></p><p>Amplifier #1 -&gt; passive crossover -&gt; tweeter</p><p></p><p>Amplifier #1 -&gt; passive crossover -&gt; midrange</p><p></p><p>Active crossover -&gt; Amplifier #2 -&gt; woofer</p></blockquote><p></p>
[QUOTE="thylantyr, post: 1250302, member: 560358"] [B]are you saying that you have tweeters running in their own seperate amplifier channel?[/B] The line array I'm running is fully active, the tweeters are driven by a 2ch home amp. The midranges are driven by a 2ch pro audio amp. [B]this is because you have an active crossover right?[/B] I'm using the DCX [B]each frequency gets its own amplifier channel...so...if i have two 8 ohm drivers, a passive crossover WITH zobel, wired in parallel then that channel of the amp would see 4 ohm?[/B] You are confusing an active setup with passive. A passive setup is; Amplifier output -> passive crossover -> tweeter Same amplifier output -> passive crossover -> midrange Same amplifier output -> passive crossover -> woofer If the drivers are 8 Ohm nominal, amplifier 'sees' 8 Ohm nominal. An active setup is; Active crossover [high pass output] -> Amplifier #1 -> tweeter Active crossover [bandpass output] -> Amplifier #2 -> midrange Active crossover [low pass output] -> Amplifier #3 -> woofer The drivers are directly connected to the amplifier. The active crossover feeds each amp the proper frequency range set by you. The amplifier 'sees' the driver impedance. You can also do that with a passive setup, but it's dumb; Ampifier #1 -> passive crossover -> tweeter Amplifier #2 -> passive crossover -> midrange Amplifier #3 -> passive crossover -> woofer Or Amplifier #1 -> passive crossover -> tweeter Amplifier #1 -> passive crossover -> midrange Amplifier #2 -> passive crossover -> woofer Amplifier #1 can be whimpy and still perform good while amplifier #2 needs more balls to drive the woofers, perhaps it can be a higher powered amp. Or Amplifier #1 -> passive crossover -> tweeter Amplifier #1 -> passive crossover -> midrange Active crossover -> Amplifier #2 -> woofer [/QUOTE]
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