Omnisat v2 FS Measurements and Analysis

It's tough to make sense of the direct sound amplitude response plots of a loudspeaker system designed purposely to provide the listener with more reflected than direct sound let alone reconciling the measurements with the subjective impressions. These sounded well balanced and tonally neutral. They measured as anything but. What can we gather in these measurements that will substantiate the subjective assessment?

In figures 6 ,9 -12 we see a pair of amplitude response curves. In each case the blue plot is the on-axis amplitude response and the red plot is amplitude response plot as measured 30°, 45°, 60°, 90° and 180° off-axis.

In the LF end of each graph we see the typical passive radiator system roll off characteristic. Note that these are direct sound measurements, done with great care taken to ensure that the effects of any nearby boundaries are excluded. Hence, the LF roll off appears to be much higher (~ 85 Hz) here than that encountered when the system is in use within the LF-enhancing confines of your favorite listening room. There you can expect an LF roll off somewhere in the neighborhood of 55Hz 舑 60Hz.

It's also clear in viewing the amplitude response plots that the v2s are directing substantial amounts of their acoustic output in directions other than front & center. Even at 45° and 60° off axis, the similarity between the on and off axis plots are remarkable. And the difference in plots between the on-axis response and 30° is remarkably minimal out to about 15 kHz, as can be seen in figures 6 and 7.

Given that fact and how well matched in terms of output the v2s were as evidenced by the on-axis ratio plot in Figure 8, it comes as no surprise they were capable of projecting a huge soundstage, populated by focused, stable images.