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Junior Varsity
Active vs Passive Direct Boxes
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<blockquote data-quote="Tim Padrick" data-source="post: 24609" data-attributes="member: 99"><p>Re: Active vs Passive Direct Boxes</p><p></p><p></p><p></p><p>It makes a big difference, especially on an acoustic instrument. If the signal that hits the player's ears from the monitor is in polarity with the signal that hits his ears from his instrument, the monitor will reinforce it. If the polarity is reversed, it will cancel. Of course neither the reinforcement nor the cancelation will be absolute owing to the frequency and phase inaccuracies of the mic/pickup and the monitor. Once the reversed signal becomes loud enough, it "takes over" and gets the job done - but the monitor level will be a lot hotter than otherwise necessary.</p></blockquote><p></p>
[QUOTE="Tim Padrick, post: 24609, member: 99"] Re: Active vs Passive Direct Boxes It makes a big difference, especially on an acoustic instrument. If the signal that hits the player's ears from the monitor is in polarity with the signal that hits his ears from his instrument, the monitor will reinforce it. If the polarity is reversed, it will cancel. Of course neither the reinforcement nor the cancelation will be absolute owing to the frequency and phase inaccuracies of the mic/pickup and the monitor. Once the reversed signal becomes loud enough, it "takes over" and gets the job done - but the monitor level will be a lot hotter than otherwise necessary. [/QUOTE]
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