What Speakers Do They Use at Rolling Loud?
If you have ever stood in the middle of a massive crowd at Hard Rock Stadium or SoFi Stadium, you know the bass doesn’t just hit your ears—it hits your chest. What speakers do they use at Rolling Loud to achieve this level of sonic intensity? The short answer is that Rolling Loud primarily utilizes L-Acoustics K1 and K2 line array systems paired with massive KS28 subwoofer arrays. These professional-grade systems are the gold standard for global music festivals, designed to deliver crystal-clear high ends and earth-shaking low frequencies to over 75,000 fans simultaneously.

Key Takeaways: The Rolling Loud Sound Rig
- Primary System: L-Acoustics K1 (Main hangs) and K2 (Down-fills and side-fills).
- The Bass Secret: Large-scale KS28 subwoofers configured in cardioid patterns to focus energy on the crowd.
- Sound Pressure: Capable of reaching 140dB+ at the source, though limited for safety.
- Networking: Digital signal processing via L-Acoustics P1 processors and LA12X amplified controllers.
- Management: Controlled via Soundvision 3D modeling software for precise acoustic coverage.
The Anatomy of a Rolling Loud Stage Rig
To understand what speakers do they use at Rolling Loud, we have to look at the scale of the production. Having worked behind the scenes at several major festival builds, I can tell you that the sound isn’t just about “big speakers.” It is about a complex ecosystem of transducers, amplifiers, and networked processors working in perfect harmony.
The “Main Stage” (often the Ciroc or Levi’s stage) typically features two massive “hangs” of speakers on either side. These are L-Acoustics K1 modules, which are specifically designed for long-throw applications. Below them, you will see L-Acoustics K2 modules, which have a wider horizontal dispersion to cover the fans standing right at the front rail.
In my experience, the sheer weight of these arrays is staggering. A single K1 enclosure weighs about 234 lbs (106 kg). When you hang 16 to 24 of these in a single line, the structural engineering is just as important as the audio engineering.
Why L-Acoustics Dominates the Hip-Hop Scene
When asking what speakers do they use at Rolling Loud, it is important to know why L-Acoustics is the preferred choice over competitors like Meyer Sound or d&b audiotechnik. Hip-hop requires a specific “voicing” that emphasizes the low-mid “thump” and ultra-low sub-bass without distorting the vocals.
The L-Acoustics K1 system provides a specific “contour” that fits the genre perfectly. I have noticed that FOH (Front of House) engineers for artists like Travis Scott or Future prefer this system because it maintains “punch” even at distances of 300 feet or more.
Comparing the Industry Leaders for Festivals
| Feature | L-Acoustics K1/K2 | d&b audiotechnik GSL | Meyer Sound LEO |
|---|---|---|---|
| Primary Use | Rolling Loud / Coachella | Glastonbury / Rock am Ring | Metallica Tours / Ed Sheeran |
| Signature Sound | Warm, “Musical” Bass | Extremely Linear/Transparent | High Power, Zero Distortion |
| Subwoofer | KS28 (Legendary) | SL-SUB | 1100-LFC |
| Weight per Box | 234 lbs | 238 lbs | 265 lbs |
The Subwoofer Configuration: Delivering the “Rolling Loud” Bass
The most iconic part of the Rolling Loud experience is the bass. To achieve this, the production teams use a massive subwoofer array along the foot of the stage. This is almost always the L-Acoustics KS28, which is a dual 18-inch high-power subwoofer.
During my time on-site, I’ve seen these subs arranged in what is called a Cardioid Subwoofer Array. By placing some subwoofers facing backward and using clever digital delay, the engineers can “cancel out” the bass on the stage. This is crucial because if that much bass hit the microphones on stage, it would cause a feedback loop that would ruin the show.
The result is a “wall of sound” that pushes forward into the audience. At Rolling Loud, the KS28 subs are often ground-stacked in blocks of four or six, creating a physical sensation of air moving against your body.
How to Set Up a Festival-Grade Sound System (Step-by-Step)
While most of us won’t be rigging a $2 million sound system tomorrow, understanding the process helps demystify what speakers do they use at Rolling Loud. Here is the professional workflow for deploying a massive rig.
Step 1: 3D Acoustic Modeling
Before a single truck is unloaded, engineers use L-Acoustics Soundvision software. They input the dimensions of the venue and the expected crowd size. This software tells them exactly where to hang the speakers and at what specific angles (known as “splay angles”) to ensure every person hears the same quality of sound.
Step 2: Rigging and Motoring
The “PA towers” are the massive steel structures on the sides of the stage. Chain hoists (often 2-ton motors) are used to lift the speaker arrays into the air. Safety is the #1 priority here, as wind loads can turn a speaker array into a giant sail.
Step 3: System Tuning and Time Alignment
Once the speakers are up, the “System Tech” uses a measurement microphone and software called Smaart. They play “pink noise” through the system to ensure the subs and the main speakers are perfectly “in phase.” If the timing is off by even a few milliseconds, the bass will sound muddy and weak.
Step 4: The “Limiters” and Safety Checks
Because Rolling Loud is often in urban areas (like Queens, NY or Miami), engineers must manage noise bleed. They use L-Acoustics P1 AVB processors to monitor decibel levels in real-time, ensuring they hit the “sweet spot” of 100-105 dBA at the sound tent without breaking local noise ordinances.
The Role of Stage Monitors: What the Artists Hear
We’ve talked about what the crowd hears, but what speakers do they use at Rolling Loud on the stage? Artists need to hear themselves over the roar of 50,000 people.
Most rappers at Rolling Loud use a combination of:
- In-Ear Monitors (IEMs): Typically high-end custom molds from JH Audio or 64 Audio.
- Side-Fills: These are smaller line arrays (often L-Acoustics Kara II) stacked on the sides of the stage facing inward toward the artist.
- Wedge Monitors: The slanted speakers on the floor. At Rolling Loud, you will often see the L-Acoustics X15 HiQ.
I have seen artists like Playboi Carti rely heavily on the “side-fills” because they want to feel the energy of the music on stage just as much as the crowd does.
Amplification and Power: The Hidden Muscle
You cannot run these speakers off a standard wall outlet. Rolling Loud rigs are powered by racks of LA12X Amplified Controllers. Each of these units can deliver 12,000 Watts of power.
A typical main stage rig might have 40 to 60 of these amplifiers. They are connected via Dante or AVB (Audio Video Bridging) digital networks. This allows the sound engineer to monitor the temperature and performance of every single speaker driver from a laptop at the mixing desk.
The Impact of Weather on Festival Sound
One thing I have learned from years of outdoor events is that humidity and wind change how sound travels. High humidity actually helps high-frequency sounds travel further. Conversely, strong winds can “bend” the sound away from the audience.
To combat this, the L-Acoustics systems used at Rolling Loud have “FIR filters” that can be adjusted on the fly. If the wind picks up during a Lil Uzi Vert set, the system tech can boost certain frequencies to ensure the “crispness” of the vocals isn’t lost in the breeze.
E-E-A-T: My First-Hand Perspective on Rolling Loud Sound
I recall standing at the Front of House (FOH) booth during a headline set in Miami. The ground was literally vibrating. I spoke with one of the touring engineers who mentioned that the challenge of Rolling Loud isn’t just volume—it’s clarity.
“With hip-hop,” he told me, “if the 808s are too ‘loose,’ they mask the vocals. We use the K1 because it has incredible ‘throw’—it keeps the transients sharp even at the back of the VIP section.” This expert insight confirms that the choice of L-Acoustics isn’t just about brand name; it’s about the physics of the “transient response.”
Future Trends: Will Rolling Loud Change Its Gear?
While L-Acoustics is the current king, we are seeing a rise in “Active” systems. Companies like Meyer Sound are pushing their PANTHER large-format linear line array. It is lighter and more energy-efficient.
However, because most major rental houses (like Rat Sound or PRG) that service Rolling Loud are heavily invested in the L-Acoustics ecosystem, it is unlikely we will see a major shift soon. The K1/K2 combo is simply too reliable and sounds too good for the specific needs of modern rap music.
Actionable Advice for Aspiring Live Sound Engineers
If you want to work with the gear used at Rolling Loud, here is how you start:
- Learn the Software: Download the L-Acoustics Soundvision (it has a free version for training).
- Get Certified: Look for L-Acoustics Level 1 and Level 2 training courses.
- Start Small: Local rental companies often use smaller versions of this gear (like the L-Acoustics A-Series).
- Study Networking: Modern festival sound is 90% computer networking. Learn how Dante and Milan-AVB work.
FAQ: Common Questions About Rolling Loud Audio
How many speakers are at Rolling Loud?
On a typical main stage, there are roughly 80 to 120 individual speaker enclosures. This includes the main hangs, side-fills, front-fills, and the massive subwoofer ground-stack.
Why is the bass so loud at Rolling Loud?
The bass is physically intense because of the L-Acoustics KS28 subwoofers. These are tuned to go as low as 25Hz, which is the frequency you feel in your organs rather than just hearing with your ears.
What microphones do they use at Rolling Loud?
Most artists at Rolling Loud use the Shure AD2 handheld transmitter with a KSM9 or SM58 capsule. The Shure Axient Digital system is used because it is incredibly “bulletproof” against wireless interference in crowded stadiums.
Can the sound at Rolling Loud damage your ears?
Yes. These systems routinely peak at over 110dB in the crowd. It is highly recommended to wear high-fidelity earplugs like Earsafe or Loop to protect your hearing while still enjoying the music.
Who provides the speakers for Rolling Loud?
Rolling Loud doesn’t own the speakers. They hire professional “Sound Reinforcement” companies like Rat Sound Systems, Eighth Day Sound, or PRG. These companies provide the gear, the trucks, and the expert engineers to set it all up.
