One Systems Cross Field Array – 2 - Manual

CROSS FIELD ARRAY-2 (CFA-2)
Long Throw/High Intelligibility
All-Weather Loudspeaker System
V100/2015
The One Systems Cross Field Array-2™ (CFA-2) was designed to provide very
high intelligibility and acoustic output where long throw requirements are
specified. The CFA-2 is a nominal 55 degree horizontal by 30 degree array that
features a fully rotatable high frequency horn/waveguide.
This allows the CFA-2
to be used in either a vertical or horizontal orientation and still allows the desired
coverage patterns. The high frequency configuration consists of two large format
close-spaced compression drivers coupled to a 2” (50.8mm) constant directivity
horn. The low frequency configuration consists of 4 bandwidth optimized 10”
(254mm) diameter woofers in a 2 x 2 array. The CFA-2 is ideal for both
outdoor/direct weather long throw applications and indoor applications in high
ambient noise environments. Typical applications are football and soccer fields,
baseball fields and large theme park environments. Indoor environments such as
basketball arenas and natatorium installations are well suited due to the ultra-
high system intelligibility.
In order to achieve maximum system performance the CFA-2 should be high
pass filtered using a 4
th
order (24dB/octave) high pass filter set to 80Hz. This
filter frequency can be set using the One Systems SF-4 High Pass Filter system
or by using any high quality DSP based loudspeaker processor. High pass filter
frequencies as low as 60Hz may be used but maximum system dynamics and
headroom are achieved by using the recommended 80Hz filter corner frequency.
The CFA-2 is a direct weather design that features a three layer stainless steel
grill assembly. The enclosure design is a laminated fiberglass construction with
high safety factory structural rigging points molded in the enclosure shell. There
are 9 M10 rigging points and the system is supplied with a stainless steel “U”
bracket for simple suspension. The “U” bracket also includes a stainless steel
strap kit that allows the desired tilt angle to be set and maintained regardless of
wind loading.