Used L-Acoustics ARCS Series
Used L-Acoustics ARCS Series loudspeakers are Constant Curvature WST line sources designed for medium-throw applications, delivering clarity, intelligibility and adaptive directivity across touring and fixed installation environments. The range includes the ARCS, ARCS II, ARCS WIDE and ARCS FOCUS variants, each suited to different coverage and deployment needs. Browse second-hand ARCS Series listings currently available by scrolling down.
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L-Acoustics ARCS Series specifications
| Brand | L-Acoustics |
| Segment | Audio |
About the L-Acoustics ARCS Series
The L-Acoustics ARCS Series comprises a family of Constant Curvature WST line sources optimised for medium-throw applications in both touring and fixed installation. Designed for FOH systems, fills, distributed designs and central clusters, the series offers adaptive and predictable directivity to suit a wide range of audience geometries. The ARCS and ARCS II are bi-amplified designs driven by LA4 or LA8 amplified controllers, with the ARCS II featuring K1-grade components for high SPL and strong LF impact. The ARCS WIDE and ARCS FOCUS models are engineered for rental and installation, carrying an IP55 protection rating, scalable directivity, innate LF resources with optional SB18 subwoofer extension, and LA4X or LA8 drive and protection sharing a common preset across both variants.
L-Acoustics ARCS Series — buyer FAQs
What is the L-Acoustics ARCS Series and what variants does it include?
The L-Acoustics ARCS Series is a family of Constant Curvature WST line sources designed for medium-throw applications in touring and fixed installation. The range covers four variants: the ARCS, ARCS II, ARCS WIDE and ARCS FOCUS. Each is suited to different coverage and deployment needs, from FOH systems and fills to distributed designs and central clusters.
Who makes the ARCS Series and where does it sit in the L-Acoustics range?
L-Acoustics is a French professional audio manufacturer founded in 1984 and credited with pioneering modern line array technology. The ARCS Series sits in the medium-format segment of the range, below flagship touring systems such as those using K1-grade components (which the ARCS II borrows), and is positioned as a scalable, plug-and-play option for rental and installation as well as touring use.
What amplified controllers are compatible with the L-Acoustics ARCS Series?
The ARCS and ARCS II use LA4 or LA8 amplified controllers for drive and protection. The ARCS WIDE and ARCS FOCUS are driven by LA4X or LA8 controllers and share a common preset across both variants, simplifying system configuration when the two models are used together in the same rig.
What directivity options do the ARCS WIDE and ARCS FOCUS offer?
The ARCS WIDE provides scalable directivity from 30 degrees to 360 degrees horizontal (in 30-degree increments) at 90 degrees vertical. The ARCS FOCUS offers finer steps, scaling from 15 degrees to 360 degrees horizontal in 15-degree increments at 90 degrees vertical. Both carry an IP55 protection rating and support optional LF extension with SB18 subwoofers.
What should a buyer check when purchasing a used L-Acoustics ARCS Series cabinet?
Buyers should confirm which specific variant is being sold (ARCS, ARCS II, WIDE or FOCUS), check that all drivers are functioning and that rigging hardware is present and undamaged. On used units, inspect grilles and enclosure condition carefully. Used ARCS Series listings on this page include a 21-day warranty covering major functional faults; the buying guide at 10kused.com/used-av-equipment-guide/ covers the full process.
