Becoming the first rental provider in Nashville to add RCF’s premium TT+ Audio sound reinforcement systems to its inventory, full-service production company Extreme Lighting & Sound (ELS) has invested in a GTX line array system.
Founded by Austin Grundberg and his father in 2014 – when Austin was still in high school – ELS has evolved from a lighting-focused business into a versatile production company with three complementary divisions covering live event production, fabrication and integration. ‘Lighting was always my original passion, but over the years I became deeply interested in sound quality and live mixing,’ says Austin Grundberg. ‘Adding the GTX rig allows us to bring the same high level of quality across every aspect of what we do.’
Finding itself frequently subletting larger PAs for festival-scale events, ELS decided it was time to expand its in-house capabilities and began considering premium systems to add to its inventory. The decision to purchase a TT+ Audio GTX line array system followed a standout experience while ELS was providing lighting for the ACM Country Kickoff in Frisco, Texas, where GTX 12 arrays were deployed for all acts during the two-day festival.
‘That was the first time I really heard GTX in action,’ Grundberg explains. ‘Long-time friend and industry FOH mentor Wayne Pauley told me not to buy anything else until you listen to this GTX system. Once I did, I was blown away by the quality, the build, and the efficiency of the system.’
The new GTX rig for ELS includes 16 GTX 10 line array modules, eight GTS 29 subwoofers, and half racks equipped with RCF XPS 16K DSP amplifiers, supported by RCF’s proprietary RDNet management platform.
‘It’s not just the sound quality, which is incredible, but also the practical design,’ Grundberg notes. ‘The way it rigs, the way it travels, the polish of the components, everything about this system is built to make shows more efficient for crews without compromising any audio performance.’
Support and service have also played a decisive role in the purchase. RCF representatives Oscar Mora, senior systems/product specialist/engineer and Matt Pogorelc from Quest Marketing (RCF’s manufacturers’ rep firm) and others provided in-depth product training and were on call throughout ELS’ first deployments of the GTX system.
‘For a company our size, support is crucial,’ says Grundberg. ‘The fact that I could text or call and immediately have people like Oscar and Matt standing by on our first load-in sealed the deal for me. That level of responsiveness means everything.’
ELS debuted its GTX rig at Godstock 2025, a multi-day worship event hosted by Hillvue Heights Church at Barren River State Resort Park in Kentucky, with additional deployments planned throughout the year.
As early adopters in Nashville, ELS is also helping establish TT+ Audio GTX’s reputation as a rider-friendly system. ‘GTX is generating significant attention in the industry right now,’ says Grundberg. ‘We’re excited to be part of that momentum and to push the system forward in our market. GTX represents not only a leap in performance but also a new level of flexibility and reliability that our clients are asking for. By bringing it into our inventory, we’re able to deliver solutions that meet the demands of today’s productions while positioning ourselves at the forefront of what’s next in live sound.’
ELS’ championing of the GTX system in live event sound extends the system’s presence in Nashville, notably including TT+ Audio GTX deployments in high profile fixed installation applications in country-pop star Morgan Wallen’s six-storey This Bar & Tennessee Kitchen, as well as Jelly Roll’s new venue Goodnight Nashville six-storey entertainment complex.
‘The momentum we’re seeing with TT+ Audio and GTX has been incredible,’ says RCF USA Vice President, Tarik Solangi. ‘From touring companies to integrators, adoption is happening quickly because the system delivers exactly what professionals need, the power, clarity, and scalability. It’s rewarding to see GTX not only gain traction in the market but also set a new benchmark for what customers expect from RCF.’