Aimed at live performance venues and
the touring sector, Arcline 12 takes a
new approach to combat the inherent
problems which compromise most
small and medium format line source
enclosures.
The idea of forming a line array is to
produce a cylindrical wavefront which
allows sound to disobey the inverse
square law, but this can only occur if
certain criteria are met. The major
criterion is to ensure that a long
enough line of enclosures are coupled
to produce a cylindrical wavefront
down to around 100Hz, as this would
then give the lower frequencies the
same decay-per-distance rate as the
mid and HF frequencies. But this
rarely happens when implementing
small and medium format line array
systems.
The outcome of not forming a long
enough line to support lower
frequencies is the all too familiar thin
sound with a lack of low midrange and
upper bass, especially as the distance
from the source increases.
To rectify this problem, Arcline 12
adds a high efficiency horn loaded
low-mid section to assist with low-mid
projection. As with its smaller brother
the Arcline 6, the 12 also physically
positions its components on an arc
forming a common virtual acoustic
centre. This, teamed up with its 120
degree horizontal dispersion, allows
for a very wide and uniform sound
coverage free from phase and
response abnormalities.
To further support setup flexibility, the
Arcline 12 can be supplied with an optional rear mounted 2 way - 3 way active mode switch and internal passive xover between MF and HF sections. This version is called the Arcline 12P. (HTT) Heat Transference
Technology has also been applied to
the Arcline 12 with an external
heatsink that wicks heat away from
the enclosure's components. This
leads in an increase in reliability and
vastly reduced power compression
effects.
Applications
Live sound in medium sized venues. Small to medium scale touring. Theatre, AV presentations, music clubs
Specification
Frequency response
90 Hz – 20kHz -3dB points
Efficiency
LF : 105.0 dB 1w/1m
MF : 101.5 dB 1w/1m HF : 107.0 dB 1w/1m
Crossover Point
300 Hz active 2.1 kHz active (passive via internal xover on 12P version)
