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Junior Varsity
What should I get ??? (speaker suggestions)
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<blockquote data-quote="Tim McCulloch" data-source="post: 50414" data-attributes="member: 67"><p>Re: What should I get ??? (speaker suggestions)</p><p></p><p></p><p></p><p>No, you won't have to "limit down to just about nothing." Are you planning to run your HF "balls to the walls" all the time?</p><p></p><p>Load a bi-amp preset into your 8000, it can be for almost any JBL model, like a SRX512. Patch a signal source but don't bother hooking up speakers. Hook up System Architect to the amp so you can monitor the input level and compare it to the OUTPUT level. Hit 'play' on your TunePlayer. You'll see that the combination of pass-band gain (typically a negative figure for HF) and the crossover's HPF on the highs significantly lower the amount of energy being delivered to the HF driver. </p><p></p><p>Do you need a peak voltage limiter? Eh, maybe... if you routinely operate the HF device near the end of it's life, a really, really fast peak voltage limiter *might* save your HF if Clueless Singer sticks her mic in the wedge or your patch boy unplugs a phantom-powered mic or DI before the console input is muted.</p><p></p><p>In typical live music reinforcement at the bar/club level you will get more long term protection of your speakers with proper RMS power limiting. The goal of RMS power limiting is to get the maximum acoustic output over the duration of the performance. To find this majik number you need to know the point at which you transducers go into power compression. The values you come up with are targets; the actual settings values will be determined by your ear and what System Architect tells you about what is happening: the amount of limiting taking place, the thermal headroom of the I-Tech, the behavior of the load attached. And use your ears... oh, I already said that.</p><p></p><p>Bennett and Ivan and I have said many times that limiting for system protection is a crap shoot. It's there to keep the moderately stupid or easily discouraged from inflicting damage. Any operator who is intent on getting more out of a speaker than it an give will eventually kill that speaker.</p></blockquote><p></p>
[QUOTE="Tim McCulloch, post: 50414, member: 67"] Re: What should I get ??? (speaker suggestions) No, you won't have to "limit down to just about nothing." Are you planning to run your HF "balls to the walls" all the time? Load a bi-amp preset into your 8000, it can be for almost any JBL model, like a SRX512. Patch a signal source but don't bother hooking up speakers. Hook up System Architect to the amp so you can monitor the input level and compare it to the OUTPUT level. Hit 'play' on your TunePlayer. You'll see that the combination of pass-band gain (typically a negative figure for HF) and the crossover's HPF on the highs significantly lower the amount of energy being delivered to the HF driver. Do you need a peak voltage limiter? Eh, maybe... if you routinely operate the HF device near the end of it's life, a really, really fast peak voltage limiter *might* save your HF if Clueless Singer sticks her mic in the wedge or your patch boy unplugs a phantom-powered mic or DI before the console input is muted. In typical live music reinforcement at the bar/club level you will get more long term protection of your speakers with proper RMS power limiting. The goal of RMS power limiting is to get the maximum acoustic output over the duration of the performance. To find this majik number you need to know the point at which you transducers go into power compression. The values you come up with are targets; the actual settings values will be determined by your ear and what System Architect tells you about what is happening: the amount of limiting taking place, the thermal headroom of the I-Tech, the behavior of the load attached. And use your ears... oh, I already said that. Bennett and Ivan and I have said many times that limiting for system protection is a crap shoot. It's there to keep the moderately stupid or easily discouraged from inflicting damage. Any operator who is intent on getting more out of a speaker than it an give will eventually kill that speaker. [/QUOTE]
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