Wayne Parham Messages: 18754 Registered: January 2001
Illuminati (33rd Degree)
The response curve published by JBL looks very close to the one we made at the Prosound Shootout. But JBL doesn't include response above 200Hz, probably because the intended use is below 100Hz. You'll notice that response is rough above 200Hz and the speaker shouldn't be used that high. Peak output is about 106dB at 500Hz, and there's a peak to 104dB at 220Hz. But there's also a 10dB dip at 200Hz and a 20dB dip at 450Hz.
I'm very pleased with the quality of measurement data we've obtained at the last two Prosound Shootouts. I don't know of any other similar events that have been done outdoors with equipment like this, so I'm glad we've taken the opportunity to take these measurements. I'm looking forward to obtaining more measurements of other systems as time goes by.