Electro-Voice X-Array Install Xi-1122-85 - Manual (Page 5)

X
-Arrayy Install
TM
Xi-1122/85 Loudspeaker System
5
X-Array Install TM Xi-1122/85 Loudspeaker System
8 kHz 10 kHz 16 kHz
Figure 2— Frequency Response
The frequency response of the system was
measured on axis in the farfield in an
anechoic environment using a swept sine-
wave signal. The DN8000 digital electronic
unit was used to provide the necessary cross-
over filters, equalization and time delay. One
watt of power (2.83 volts rms at 250 Hz) was
applied to the midband of the low-frequency
section. The sound-pressure level was nor-
malized for an equivalent one meter distance.
Figure 3— Beamwidth
The beamwidth of the system, (i.e., the in-
cluded horizontal and vertical coverage
angles at the 6-dB-down point) was mea-
sured with a full spherical measurement sys-
tem as described in "Polar Response."
Horizontal
Vertical