Arcline has been developed to give hire companies, touring companies, and installation contractors a choice of line array systems that are capable of exceeding the most demanding requirements.
The fundamental design of Arcline has been paved out by many years of research into the needs of our ever changing industry. It was determined early on that a line source with a cylindrical wavefront would best serve the requirements demanded of a modern line source system. To accomplish this, all of the components within each enclosure are physically positioned on an arc. This curved baffle arrangement allows for the components to share a common virtual acoustic centre that exists rearward of the physical array, thus equalising the sound path distances. The benefits are significant; they include constant sound intensity over the stated coverage angles, and greater linearity of the near-to-far-field transition point. The normally poor impulse response that is an inherent problem with line source transmission is also greatly improved by minimizing the path length differences, as well as by the use of our exclusive power tapering technology that's carried out in each enclosure.
The Arcline family of products provide a range of no-compromise solutions suitable for system designers, sound consultants, and production companies of all types. In the rental market particularly, versatility must be the overriding priority with any new purchases these days, and the Arcline family of products are as versatile as they come.
Arcline 12
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.
Arcline 6
The main design considerations behind the Arcline 6 were versatility and ease of use. Portability and a sophisticated rigging system that requires no specialized knowledge by the user were also high on the list.
In order to avoid the use of multiple enclosures, yet ensure a wide enough horizontal coverage pattern, the Arcline 6 was conceived with a 120 degree dispersion in the horizontal plane. This dramatically improves the perceived sound qual i t y and definition, as well as reducing setup time by eliminating the need to hang multiple columns to achieve the needed angle of coverage.
Placing all the components on a virtual arc with a true 120 degree dispersion has resulted in a highly-uniform polar pattern that allows all of the audience members to experience a similar sound quality.
Traditional HF spacing and path length compensation among line source enclosures has almost always meant a compromise in HF performance; thus a new design of waveguide has been employed for the Arcline 6. The new waveguide and common virtual feed point allows a flat response up to 21 kHz, even when coupled with multiple enclosures. The ability of the Arcline 6 to form a true cylindrical wavefront when used in multiples is key to its exceptionally smooth transition from near-field to far-field coverage.
Arcline X
Expanding on the multiple resonant chamber concept as found in the Stasys X, the Arcline X takes an even bigger break from tradition by distilling the technology one step further. Each enclosure offers 140dB peak SPL, whilst an array capable of 150dB peaks occupies a frontal area of only 3 sq meters and can be setup in less that 2 minuets by two people.
The radical advance of the multiple resonant chamber technology employed by the Arcline X has also allowed a sub 40Hz f3 point, which is unprecedented for an enclosure with an external volume of just 300 litres.
Internal horn path considerations have also produced an enclosure with an extended upper response that will happily reproduce up to 250Hz. This allows for a much higher crossover frequency into the Arcline 6, which raises its maximum output level capability and allows far greater projection of the important upper bass frequencies that many small line sources fail to reproduce convincingly.
Arcline X also features HTT (heat transference technology). A single side located heatsink is used to transfer heat from both woofers voice coils and magnet assemblies to improve power compression effects and long term reliability.
