8 English
Figure 4. The curves show the eect of
the “Bass Tilt”, “Treble Tilt”, “Desktop
200 Hz” and “Bass Roll-O” controls on
the free eld response of the 8020D.
Figure 5. Frequency responses at 0,
15, 30, 45 and 60 degree angles and
power response in full space. Input
level -20 dBu.
75
80
85
90
40