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<blockquote data-quote="Silas Pradetto" data-source="post: 24661" data-attributes="member: 34">Re: Should I modify my SR4732A&#039;a or leave them stock?Gary, I don&#039;t think you&#039;re crazy. From my experience, the baby cheeks do not keep up, and do blow easily. As I mentioned in another thread, the 4732 combination seems more at home flown in a club above the dancefloor than in a PA situation. That said, many use the 4731s successfully for PA use (same box, no cheeks), since in many cases PA use doesn&#039;t really need a ton of output in that top octave. Here&#039;s your driver: <a href="http://www.jblpro.com/pub/components/2447.pdf" target="_blank">http://www.jblpro.com/pub/components/2447.pdf</a>It certainly can go up to 15k or so, according to the sheet, but I don&#039;t know how it fares on the horn in your box, which I think is a 2381. Also in the marketplace thread, I mentioned that you should pretty easily be able to delete the low-pass on the 2447, which is probably just two components, an inductor and a capacitor. You&#039;d need a schematic of the crossover to know for sure, though.Actually, scratch that. Here&#039;s your crossover: <a href="http://www.jblproservice.com/pdf/SR-Series/SR4732A.pdf" target="_blank">http://www.jblproservice.com/pdf/SR-Series/SR4732A.pdf</a>I&#039;m not a crossover expert, but it looks like it would be a bit more complicated to delete the low-pass. Maybe not to remove the components, but at least for me to decipher what&#039;s going on there.Edit: after some careful looking, it appears that there is a series cap plus a parallel inductor on the 2447...if I&#039;m not mistaken, that is a high-pass on the 2447, and there is no low-pass. Someone with crossover experience needs to confirm this, since JBL says it&#039;s crossed at 6k. Obviously, if there is no low-pass on it, then just unplug the baby cheeks and call it a day.</blockquote>

[QUOTE="Silas Pradetto, post: 24661, member: 34"] Re: Should I modify my SR4732A'a or leave them stock? Gary, I don't think you're crazy. From my experience, the baby cheeks do not keep up, and do blow easily. As I mentioned in another thread, the 4732 combination seems more at home flown in a club above the dancefloor than in a PA situation. That said, many use the 4731s successfully for PA use (same box, no cheeks), since in many cases PA use doesn't really need a ton of output in that top octave. Here's your driver: [url]http://www.jblpro.com/pub/components/2447.pdf[/url] It certainly can go up to 15k or so, according to the sheet, but I don't know how it fares on the horn in your box, which I think is a 2381. Also in the marketplace thread, I mentioned that you should pretty easily be able to delete the low-pass on the 2447, which is probably just two components, an inductor and a capacitor. You'd need a schematic of the crossover to know for sure, though. Actually, scratch that. Here's your crossover: [url]http://www.jblproservice.com/pdf/SR-Series/SR4732A.pdf[/url] I'm not a crossover expert, but it looks like it would be a bit more complicated to delete the low-pass. Maybe not to remove the components, but at least for me to decipher what's going on there. Edit: after some careful looking, it appears that there is a series cap plus a parallel inductor on the 2447...if I'm not mistaken, that is a high-pass on the 2447, and there is no low-pass. Someone with crossover experience needs to confirm this, since JBL says it's crossed at 6k. Obviously, if there is no low-pass on it, then just unplug the baby cheeks and call it a day. [/QUOTE]

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