What Is A Line Array?
In simple terms, a Line Array is a vertical stack of three identically matched REL subwoofers placed behind each main speaker. This configuration dramatically enhances dynamics, improves room coupling, and creates a vertical column of bass energy that supports the entire sound stage—not just the low end. But here’s the key: it’s not just about more bass. It’s about better bass.
Why It Works
Traditional single-sub systems radiate bass from a single point in the room. That works—until it doesn’t. The moment your room interacts poorly with those waves, things can fall apart. You’ll notice hotspots, dead zones, or a general lack of focus. Line Arrays solve this by distributing bass energy more evenly across the vertical plane. The result? Smoother integration with your main speakers, greater consistency throughout the listening space, and a stage with more height, depth, and dimension than any single sub can deliver. We’re talking about holographic realism. Instruments float. Vocals gain weight. The room disappears.
Who It’s For
If you’ve invested in high-performance speakers and amplification—and you’re chasing that next-level leap in immersion and emotional connection—Line Arrays are for you. They’re not just louder. They’re more lifelike. More consistent. More deeply satisfying. This is how we close the gap between reproduction and reality.
How to Build a Line Array Over Time
You don’t have to start with all six subwoofers. Many REL owners build their Line Arrays in stages—starting with a stereo pair and adding to them as their system and budget allow. Begin with two perfectly matched subs placed behind your main speakers. When you’re ready, add a second level to each stack to deepen the stage and improve room integration. Finish with a third subwoofer atop each column for the full Line Array experience: effortless dynamics, floor-to-ceiling bass, and holographic realism that fills the room.
Each step delivers a noticeable performance upgrade, letting you enjoy the journey as much as the destination.
Build Your REL Line Array

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How to Set Up & Dial in a Line Array
Proper subwoofer placement, determining the correct phase setting, as well as individually dialing in the gain and crossover for each subwoofer are critical steps in optimizing the performance of a REL Line Array. Watch our in depth walkthrough that covers everything you need to know to setup a Line Array like a pro.


