Interesting discussion, it doesn’t appear that it’s centered at 900-1000 hz on any of them, but varies quite a lot. The center from the 900c system has a dip centered at 2.8khz, which just so happens to be at a crossover frequency, where the r900 systems center appears to have a bump at the 3khz crossover point and a dip in total power above that, which to me, indicates poor attenuation of the midrange/bass units to the tweeter. I’m having a hard time reading what frequency the divisions are in the graphs.
I hate to say it, but I’ve also sometimes questioned SV’s measurements, since they sometimes produce measurements that don’t match up with others measurements, including my own. For example here is the Klipsch rp 150m measurements from SV
And here is the measurement I took of the individual drivers
The bump at 14khz and 800hz has never been replicated by me no matter how I measure it. In addition, the speaker achieves a response outdoors of 47hz -3dB vs their measured 66hz. The bump and subsequent dip at 14khz indicates a breakup mode at 14khz for the tweeter, as this is often how drivers behave at breakup, I don’t have the photo on my phone at the moment, but according to my measurements, the actual breakup of the titanium tweeters is at about 24khz, with a big spike and crash above that.
I also have a measurement of the center floating around somewhere and it certainly doesn’t display the 5dB shelf at 2khz seen in their measurements. If there truly was a +5dB shelf on the center at the high frequencies, rising as it does in the graph, it would be near unbearable due to extreme brightness.
Some of their sensitivity ratings seem off as well. I own two speakers measured by them, the rp 150m and the Polk owm3. They rated the owm 3 at 89dB, and the rp 150m at 88dB. Out of curiosity, I hooked both to my receiver , one to the left channel, and one to the right channel, placed them side by side and proceeded to level match them in the Avr setup menu using a c weighted spl meter. The OWM3s required +3dB of gain in order to match the Klipsch, which begs the question of how SV achieved a higher sensitivity rating for the Polk, especially considering the Polk is a small satellite with a direct radiating tweeter, while the Klipsch is a moderately sized bookshelf fit with a horn.
Sent from my iPhone using Tapatalk