Archaea
Active Member
@amirm, what's your take on that 800hz resonance not showing up with omnimic frequency response plots in room? As I mentioned in post 50 - I tested all 13 of my speakers from the same position and overlaid their FR to validate they were all the same. Before I shipped the new 70J-1 to you, I tested it against one of my existing speakers to make sure it had the same FR overlay and it did. My FR sweeps didn't catch a 800hz resonance, but I don't know if they should, or shouldn't have in the simple capture I did compared to your tool.If you take away the resonance at 800 Hz, response is flat between 200 Hz and 10 kHz. That is very good considering the good directivity control.
I freely admit I don't understand everything I read in this thread, and my knowledge level is basic compared to yours and some of the members here.
My FR capture/comparisons were only on axis, as pictured -- would that matter? I also measured, and use the speakers with no grills.
I'll put a snip of that picture set here for ease of view, but the uncompressed, more readable one is in post 50.