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A1 Mainframe F-Series
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F1220 Data Sheet
F1220
F1220 isobar diagram
Dispersion characteristics
The
diagrams
below
s
how
dispersion
angle
vs
frequency
plot
ted
using
lines
of
equal
sound
pressure
(isobars)
at
-6
dB
and
-12
dB.
The
nominal
60°
horizont
al
dispersion
is
maintained
from
17
kHz
down to 2 kHz.
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