Members RoadRanger Posted July 16, 2013 Members Share Posted July 16, 2013 Or so a reliable source tells me . Link to comment Share on other sites More sharing options...
Members A.M.Productions Posted July 16, 2013 Members Share Posted July 16, 2013 the prx718 has been out for months Link to comment Share on other sites More sharing options...
Members monthlymixcd Posted July 16, 2013 Members Share Posted July 16, 2013 A.M.Productions wrote: the prx718 has been out for months Years maybe?!? Wasn't the 718 the XLF before there was an XLF? Reviews for the PRX718S started popping up in early 2010... but I'm pretty sure that's not what he's talking about. Link to comment Share on other sites More sharing options...
Members agedhorse Posted July 16, 2013 Members Share Posted July 16, 2013 A.M.Productions wrote: the prx718 has been out for months Huh?There was a PRX-718 that lasted only about 4 or 5 months before being discontiunued maybe 3 years ago. It was replaced by the PRX-618XLF and the rest of the 600 series. There was nothing else released under the PRX-700 series. Link to comment Share on other sites More sharing options...
Members tucu Posted October 20, 2013 Members Share Posted October 20, 2013 Hi, I'm also interested in the JBL PRX 715 XLF. Indeed, from the specification it is not clear if the woofer is neo but I think that it couldn't have weighed only 56 lbs if it weren't neo, right ? The new JBL 2275H is the woofer used in 715XLF. And the JBL 2265HPL (from the SRX series) is neodimium and it looks like this: Anyway, is there anyone who has actually seen the products from the PRX 700 Series in a real store, or has anyone had the chance to hear them out? Are the temperature issues solved ? Link to comment Share on other sites More sharing options...
Members agedhorse Posted October 21, 2013 Members Share Posted October 21, 2013 There never were temperature issues, other than the wild ass guesses that some forums seem to support. It's surprising to me that those who have never designed an amp, a class D amp with SMPS at that, are such experts in assigning specific faults when they are clearly not educated enough to do so. I have designed many amps in my career, including some class D, and I wouldn't be so bold as to assign a cause... especially as many thousands of these amps have been running without any problem at all. Link to comment Share on other sites More sharing options...
CMS Author Craig Vecchione Posted October 21, 2013 CMS Author Share Posted October 21, 2013 JBL is supposed to send me a 700 series to review. It was back-ordered 2-1/2 weeks, about two and a half weeks ago... Link to comment Share on other sites More sharing options...
Members tucu Posted October 21, 2013 Members Share Posted October 21, 2013 We are looking forward to hearing the reviews and details from you. Link to comment Share on other sites More sharing options...
Members mrcpro Posted October 21, 2013 Members Share Posted October 21, 2013 http://www.harmonycentral.com/t5/Live-Sound-Production/Powered-Subs-JBL-PRX-XLF-versus-DLM-12/m-p/35831981#U35831981 Here's the thread of a guy who bought a pair of the 715s. He apparantly loves them, but note that he's never compared them to anything - not even his XLFs before they were sold. He just bought them blind and started using them. Link to comment Share on other sites More sharing options...
Members KeysMan Posted October 21, 2013 Members Share Posted October 21, 2013 Maybe this question arises from my lack of experience with subs, but why wouldn't JBL put a selectable crossover frequency on these subs? It would be fairly easy to implement a selectable crossover frequency using the DSP. It seems like if you were using the 710 as opposed to the 712 in conjunction with a 715XLF that you would want to allow the 15" sub to take more of the low end frequencies than ~100Hz and below. Link to comment Share on other sites More sharing options...
Members agedhorse Posted October 22, 2013 Members Share Posted October 22, 2013 100Hz is a good choice for the 710. With an LR xover alignment, the response at 100Hz is -6dB which gives an acceptable power bandwidth versus sensitivity result. This is the method that (many) designers use to determine the minimum crossover point. Link to comment Share on other sites More sharing options...
Members tucu Posted October 22, 2013 Members Share Posted October 22, 2013 "The PRX715XLF is the next step in the highly successful PRX Series and introducesthe fi rst use of JBL Link to comment Share on other sites More sharing options...
CMS Author Craig Vecchione Posted October 22, 2013 CMS Author Share Posted October 22, 2013 Ah, not neo!Take that, Chinese! Link to comment Share on other sites More sharing options...
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