FullSize System’s Flagship L-Series System Coalesces an Exceptional Sonic Experience for All-4-One and Brian McKnight in Challenging 360° Arena Deployment

FullSize System, part of Thunder Productions, became Indonesia’s first official L Series rental partner following its October 2024 acquisition of L-Acoustics L2 and L2D arrays – a move that marked a significant step up from its corporate seminar work into the premium live concert market. The system’s capabilities, however, were put to the test at the sold-out “Heart & Soul Live in Jakarta 2025” concert at the 5,000-capacity Tennis Indoor Senayan Arena, where the arrays delivered sound for All-4-One, Brian McKnight and Indonesian artist Raisa in a challenging 360° arena configuration.

The shift into high-level concert production followed a strategic decision by FullSize System to invest in flagship technology that could access Indonesia’s expanding live market. “We knew the award-winning coverage, frequency response, and sonic integrity of L Series would deliver that distinct concert sound quality that separates professional productions from everything else,” comments Yumir Mujaldi, Director of FullSize System. “The L2 and L2D represent the top-tier concert sound solutions available in the market. With this system, we could expand our company’s profile to take on the larger events that were previously beyond our reach.”

The acquisition was supported by comprehensive technical training from L-Acoustics, equipping the FullSize System team with essential design, deployment and operational skills. L-Acoustics certified provider Gracia Auvindo also provided support during the Jakarta event, with Rama Nazar N. and his team collaborating on system design, on-site implementation and tuning.

With the stage positioned centrally, the 360° seating layout presented significant acoustic and logistical challenges. FullSize System relied on Soundvision 3D modelling to determine rigging positions and to secure promoter approval through predictive acoustic simulations. “With the concert’s 360° seating layout, FOH positioning constraints, and client requirements for optimal SPL with even coverage, the L Series streamlined design philosophy and Soundvision’s simulation capabilities proved crucial to meeting all requirements even before we deployed the system,” says Yumir.

The final configuration comprised four L2 and six L2D units for the main PA, 24 units of the KS28 subwoofers for low-end reinforcement, and 8 units of the Kara II boxes for front-fill. The system ran via Milan-AVB with analogue backup, interfaced through AES-EBU to a P1 processor with full redundancy. Throughout the concert performances, the L2 and L2D arrays delivered the exceptional consistency and pristine signature sound quality that defines L-Acoustics flagship technology. The Soundvision system design and L2 deployment simplicity enabled FullSize System to adhere to tight timelines following staging and rigging phases, with efficient on-site tuning and calibration.

According to Yumir, the deployment delivered consistent results: “For the show, the concert mix engineer experienced no problems mixing the entire live backing band, despite the challenging venue layout and FOH position. We received outstanding feedback from the guest stars during soundcheck, and the promoter was completely satisfied with the results.”

Yumir also highlighted the support provided by L-Acoustics: “Beyond the pre-event planning tools that allowed us to propose the system with complete confidence, the L-Acoustics team provided swift technical support when we encountered a connectivity issue with the P1 during tuning, helping us resolve the problem immediately.”

The event has positioned FullSize System as a key player in Indonesia’s premium live sound market. “We have stepped up to the next level and proved we can deliver larger concerts, music festivals, and major corporate industry events,” concludes Yumir. “This is just the beginning—we see much more to come.”

The Jakarta deployment not only marked a milestone for FullSize System but also highlighted the increasing demand for world-class sound reinforcement solutions in Southeast Asia.