Australia’s rapidly growing Mundi Mundi Bash has established itself as the country’s premier outback music festival, drawing 16,000 attendees to the remote Mundi Mundi Plains of New South Wales. Now in its fifth year since launching in 2021, the three-day family-friendly festival has become a destination event, combining authentic Australian outback heritage with world-class audio production and record-breaking community activities.
The festival has earned recognition for multiple world records, including the Largest Nutbush Dance and charitable community activities. This year’s record-breaking achievements complemented exceptional sound quality delivered by a comprehensive L-Acoustics K Series concert sound system across a massive 60,000 square-metre outdoor concert area.
16,000 fans descended on the Australian outback as L-Acoustics K2 brought the thunder to Mundi Mundi Bash.
K2 Variable Directivity Solves Unique Coverage Challenges
Turnkey production company Powa designed and deployed the festival’s audio solution, selecting L-Acoustics K2 for both main PA and delay systems to achieve precise coverage across the site’s 240-metre width and 250-metre depth. The K2 adjustable Panflex coverage patterns proved essential for optimizing audio distribution in the challenging desert environment.
“On top of being highly rider-friendly, we really like the K2 due to the flexibility of the box’s coverage. You can narrow it up or widen it out depending on your site,” explains Geoff Knight, Powa’s Managing Director and Production Manager. “By setting the fins to 70 degrees, we get more SPL to reach the back of the audience, others were set wide at 110 degrees for broader coverage. Other products don’t give you that variable directivity.”
Soundvision Integration Enables Rapid Desert Deployment
Powa’s team leveraged L-Acoustics Soundvision software with Vectorworks CAD modelling for both technical planning and client presentations. The detailed pre-planning enabled the entire 148-enclosure system to be lifted off the ground within five hours despite challenging logistical constraints. “We had effectively three days to build. Two days were for ground support and then just one day of production,” Knight notes. “One of the challenges with these remote festivals is working with volunteers rather than experienced audio loaders. Having very precise information from our Soundvision design translated directly to efficient deployment on site.”
Powa’s FOH System Designer Hamish McKoy received updated training from the L-Acoustics Application team weeks before the event. “The L-Acoustics team suggested focusing more on SPL coverage rather than prioritising tonal coverage across the site, and shared perspective on other small adjustments the help me optimize the system,” McKoy explains.
Comprehensive K Series Configuration Delivers Full-Site Coverage
The final system design featured an all-L-Acoustics configuration specifically engineered for the massive festival footprint. Main PA consisted of two K1-SB subwoofers over 14 K2 per side, with extended out-hangs of eight K2 per side and narrower out-fills using two A15 Wide per side. Eight ground stacks of three SB28 subwoofers with A15 Focus boxes provided front-fill.
Two delay rings ensured consistent coverage: four hangs of eight K2 positioned 30 metres past FOH, and four hangs of eight Kara at 150 metres back. Near-field monitoring at FOH utilized a pair of A15 Wide boxes. The complete 148-enclosure system was driven by 31 LA12X and 18 LA8 amplified controllers, delivering consistent coverage throughout the concert area without overwhelming nearby food court and activity plaza areas.
LA Network Manager Enables Real-Time Environmental Adaptation
The desert location near wind farms presented significant environmental challenges, with 50-90 km/h dust storm winds during build and dramatic temperature variations between cold nights and warm days. “Having control over the main PA through Soundvision Autofilters was super useful for keeping everything updated during the day,” McKoy reveals. “As temperatures changed throughout the day, I mainly had to adjust system timing to keep everything phase-aligned. The L-Acoustics ecosystem was excellent for this.”
Eight delay towers doing the work—four K2 hangs and four Kara arrays keeping the back of house dialed inEight delay towers doing the work—four K2 hangs and four Kara arrays keeping the back of house dialled in
Four eight-box K2 hangs positioned 30 metres past FOH for delay reinforcementFour eight-box K2 hangs positioned 30 metres past FOH for delay reinforcement
Artist Engineers Praise K Series Performance and Reliability
The system earned enthusiastic endorsement from headline artists and their engineers, like Marshall Cullen, FOH Engineer for festival closing act, The Hoodoo Gurus. “I use the same show file each time, which gives me a very easy comparison between different line arrays as we tour around the world. The system provided by Powa met and exceeded my expectations,” Cullen reports. “It was an absolute pleasure to hear the clarity in the vocals from 40 metres away and beyond on the two delay sets. I am very much looking forward to using the K Series again.”
Shane Jerome, Audio Engineer for Dragon, echoed the positive response: “I had a very easy time mixing Dragon at Mundi Mundi 2025. Walking the area during previous bands, I found coverage was spot on. The L-Acoustics system was set up very well with everything clear and plenty of headroom.”
Proven Performance Sets New Standards for Remote Festival Production
Throughout the three-day festival, the K Series system demonstrated exceptional reliability despite challenging environmental conditions and extensive deployment scale. With the L-Acoustics K Series now proven at one of Australia’s most challenging remote festivals, Powa continues investing in L-Acoustics technology to enhance large-scale outdoor event capabilities.
“Normally, if there’s an audio deficiency, there will be plenty of feedback on socials. At Mundi Mundi, there wasn’t.” Knight concludes: “We had positive comments from festival socials all the way through the three days.”
