Re: JBLPRX button settings, definitive answer
Not sure, I don't have one in the shop to test.
Again, though, knowing a bit about the application, the HF boost is probably a shelving filter beginning around 5kHz or a little higher, to compensate for air absorption.
Now about my reply to Lisa: it depends on several things, mostly about how JBL designed the alignment. If they specifically say to not engage the "Mains" setting when used with a sub, try that first and see how it works out. If you don't like it, try it the other way. Remember that JBL probably did not factor in the use of a DRPA or similar processor when creating the in-speaker processing. If you have the subwoofer drive "hyped", you may have raised the acoustic crossover point high enough to not need the PA to run as low, but in that case my thought would be to lower the subwoofer low pass filter by about 1/3 octave, maybe a bit more, to compensate for the overlap. Another consideration would be if running the PA full range put too much stress on the woofer or amp, but that's another post.
Have fun, good luck.
Tim Mc
