Quantum 852 Takes Centre Stage At RODEOHOUSTON

LD Systems deployed DiGiCo's flagship Quantum 852 console at NRG Stadium for this year's Houston Livestock Show and Rodeo, delivering clear, immersive audio across 21 days of competition and nightly concerts to a combined audience exceeding 2.7 million.

Founded in 1932 as a showcase for agricultural communities, RODEOHOUSTON has evolved into one of the USA's biggest cultural and economic gatherings. Since 2003 it has been staged at NRG Stadium, where this year's edition ran from 2–22 March, capped each evening by headline performances from the likes of Tim McGraw, Lainey Wilson, Kelly Clarkson, Lizzo, Luke Bryan, Chris Stapleton, Dwight Yoakam, Shaboozey and others.

In keeping with the event's scale, LD Systems, a Clair Global brand based in Houston, introduced the DiGiCo Quantum 852 at the venue for the first time, using it to mix the world's largest rodeo. The console handled all in-venue sound for rodeo action, announcers, effects, playback, interviews and more. The main infrastructure also included a pair of DiGiCo SD‑Racks and an Orange Box in the central patch room, with four SD‑Mini Racks positioned around the stadium for distribution.

"This is a high-profile event that operates around the clock for 21 days straight," observes LD Systems President Rob McKinley, who also served as the Project Manager for the event. "Every technical element is mission-critical, with minimal time for recovery if any issues arise. Therefore, my role is to support the team with the tools and resources they need to perform flawlessly, and if there is an issue, that there is a rock-solid backup to quickly recover. DiGiCo has provided a great tool in the Quantum product to elevate our engineers' performance, thereby creating a greater fan experience. DiGiCo provided excellent support, with Julian Gates on-site for several days to ensure the Quantum852 performed, which it did with flying colors. Everyone was pleased with the outcome and we look forward to many more great events with DiGiCo."

LD Systems A1 Rafael Rosales sat at the helm of the new desk, bridging the demands of sports and live entertainment throughout each packed session. "My role sits somewhere between a live sports mix and a show mix," explains LD Systems A1 for the event Rafael Rosales. "I'm managing everything the audience hears during the rodeo: announcers, effects, playback, interviews… and making sure it all translates clearly across a very large space."

Rosales notes that the sheer magnitude of the venue, coupled with the show's rapid transitions, posed the central technical challenge. "The scale is a big part of it, but it's really the combination of scale and speed," Rosales says. "You're working with a very large PA, long throw distances, and a high noise floor from the crowd and the arena itself, while also dealing with open microphones, especially announcers in front of the PA. So gain-before-feedback, bleed control, and intelligibility are constant priorities. At the same time, the show moves very quickly. You can go from an intense event straight into an interview, then into playback, and back into competition within seconds. Each of those elements behaves very differently sonically.

"But, beyond that, the goal is immersion," he continues. "I'm using a wide network of microphones—ambient mics around the arena, effects mics on gates and chutes, chuck wagons, lavaliers on contestants and contractors, and so on. The intention is that no matter where someone is seated it feels like they're right there on the dirt, hearing the details of the action as it happens."

The Quantum 852's processing architecture and visual feedback proved decisive for managing the show's input count and dynamics, Rosales says. "On the input side, I rely heavily on Mustard Processing—dynamic EQ, multiband compression, and the Mustard Source Expander—to stabilize each channel before it even reaches my mix," he explains, referring to DiGiCo's onboard tube/EQ/dynamics processing modeled from highly sought-after analog units. "With over 100 inputs active I can't physically ride every fader all the time, so I build that control into the channels themselves. That way, even if I'm not touching a source at a given moment, it's still behaving in a controlled and predictable way. Playback feeds are a good example of that. They all come in with different tonal signatures and dynamics, so I use multiband compression to smooth those differences so everything sits in a consistent sonic space. I also extend that approach to my busses, using dynamic EQ and multiband compression, to keep groups balanced as multiple elements stack up. Another thing I really like is the amount of metering and data the console gives me. I have a lot of visual feedback in front of me at all times—levels, dynamics, processing activity—which helps me make fast decisions in a very dynamic environment."

In rodeo, eight seconds can decide a ride; in the control room, speed of access can make or break a moment. Rosales leaned on the console's workflow to keep pace. "In this environment speed and access are everything," he says. "I'm working with over 120 inputs, so I rely heavily on macros and spill sets to organize the console around how the show actually unfolds. I can instantly jump to specific zones, whether it's a section of the arena, announcers, or playback, and only see what I need in that moment. That means I'm not searching for channels; I'm going directly to where the action is happening. Physically, the desk also supports that workflow: having a large number of faders available, depending on layout, lets me keep key inputs and groups under my hands without constantly banking.

"The dual-engine design is also critical: it gives me seamless redundancy that is essential when you're effectively running a live, broadcast-style mix for that many people. It really comes down to preparation and speed. I use processing to control my inputs before they hit the mix, rely on visual metering to stay informed, and use the workflow tools to react instantly. That's what allows me to deliver a mix that feels both clear and immersive for the entire stadium."

Systems support was another pillar of success, according to LD Systems Audio Ops Manager and Systems Engineer Thomas Ruffner, who underscored the backing from DiGiCo and Group One, DiGiCo's US distributor. "It's worth highlighting the absolutely amazing support we receive from DiGiCo and its US distributor, Group One," he says. "Whether we're adopting a new platform like the Q852, or just working through scenarios with existing DiGiCo equipment, the customer service they provide is truly second to none. The team at Group One is really fantastic at making sure we have the tools, knowledge, and real-time support necessary for success with a powerful platform like Q852 at the helm of a complex show like RODEOHOUSTON. Vendor support is a major deciding factor when choosing which tools we use, and the DiGiCo and Group One teams never disappoint!"

Further details on RODEOHOUSTON can be found at www.rodeohouston.com, while LD Systems is online at www.ldsystems.com.

DiGiCo, the UK-based manufacturer behind the Quantum series and other digital mixing platforms for live, theatre, broadcast and postproduction, is online at www.digico.biz.