Genelec 8240APM Operating Manual page 15

The curves above show the effect of the "Bass Tilt", "Treble Tilt",
"Desktop Low Frequency" and "Bass Roll-Off" controls on the
free field response of the 8240A.
The curves above show the effect of the "Bass Tilt", "Treble Tilt",
"Desktop Low Frequency" and "Bass Roll-Off" controls on the
free field response of the 8250A.
The upper curve group shows the horizontal directivity characteristics
of the 8240A measured at  m. The lower curve shows the system's
power response.
The upper curve group shows the horizontal directivity characteristics
of the 8250A measured at  m. The lower curve shows the system's
power response.
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