6
Figure 5. The curves show the
eect of the “Bass Tilt”, “Treble
Tilt” and “Bass Roll-O” con-
trols on the free eld response
of the 4020C.
Figure 6. 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