maty
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- #21
https://www.amazon.com/Klipsch-RP-8000F-Reference-Premiere-Floorstanding/dp/B07G9PKV4N?th=1
29 customer ratings -> 4.8 out of 5
29 customer ratings -> 4.8 out of 5
Did you look at the conditions of those two graphs before you posted them? The on-axis response from audioholics is essentially flat but only degrades when moving way off axis. (As might be expected.)
Danny Richie claims a huge dip in the response on axis. So, clearly something vastly different in either the particular speaker tested and/or the testing scenario between these two objective measurements.
When a large measurement discrepancy like this exists between two speakers, I'm inclined to disbelieve both of them. At least until a 3rd or 4th or etc measurement comes along to validate one or the other.
Dave.
OptimizedI took my own RP-8000F speakers and ran REW to take a measurement (1/6 smoothing on the graph) I know it’s not perfect but it does validate the measurements Danny took. Also note: I went ahead and measured the woofer too so people can stop complaining about that https://imgur.com/gallery/iop64TH
I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the Magico M2's frequency response in the farfield, and an Earthworks QTC-40 mike for the nearfield and in-room responses...
Fig.3 Magico M2, anechoic response on tweeter axis at 50", averaged across 30° horizontal window and corrected for microphone response (green), with the nearfield responses of the midrange unit (red) and woofers (blue) respectively plotted below 350Hz and 7 00Hz.
Fig.8 Magico M2, cumulative spectral-decay plot on tweeter axis at 50" (0.15ms risetime).
If I am not wrong, the standard is to measure a 1 m. Stereophile?
It is also true that floorstanding loudspeakers could also be measured at a greater distance, 2 m as Audioholics did. If they were me, I would make measurements at 1 m and at listening point, small and big loudspeakers.
Now, the RF-5 used a smaller driver on a bit smaller horn and they took that one down to 1500Hz...