REL Acoustics Ltd.

Our Purpose

Each day we come in to work in pursuit of only one intention, to produce the most raw, perfect, pure sound possible, to capture the raw intention of the artist. We use the best quality materials, employ the most exacting construction requirements. We think of the problem holistically. We pursue the chase of the perfect experience of sound with an obsessive passion and vigor.

We do it because we love sound. We believe sound can move people more than any other sense. We believe it’s the integration of the bass via the perfect subwoofer that makes everything else better. And, ultimately, there is a great deal of satisfaction to be gained from doing this well, creating something of unique quality, such that you know it is going to inspire.

Our Way

We obsess over the details, never satisfied, never finished, constantly refining, simplifying, building iteratively upon what has come before. This is the path to perfection, a never ending pursuit for better.

We view the challenge simply, as the need to transform electrical currents into soundwaves that can extend the capabilities of loudspeakers. We then approach the situation holistically, looking at every aspect of the bass engine and improving any weakness or shortfall. Constantly testing and experimenting with new materials, engineering or design. Always striving to add more value with every improvement by delivering sound experiences, timeless beauty and reliability that outweigh their cost.

Our Story

From the beginning this has been a labor of love, born from a desire for a more perfect sound experience.

1990
1990

High Level Input

Key to this evolution was the adoption early on of a High Level connection, one that derives its input signal from the final output stage of an amplifier or receiver. This produces a seamless quality that precisely matches the sound being fed to your loudspeakers.

1998
1998

ABC Input Filters

These early predecessors to the modern REL filter technology used complicated banks of rotary switches to set crossover points but while they were slow by modern REL standards they were miles ahead of the competition and served us well for almost a decade.

1998
1998

High Current Amplifiers

Current, not voltage, is what produces movement in large high powered subwoofer drivers. Our engineers ensure that our designs are incredibly robust and produce tons of current which means they not only reproduce the attack and body of a note, but also the echoes as sound dies away. All amplifiers are not the same and ours are designed specifically to reproduce the lowest of bass notes.

2005
2005

The Modern Era

With new ownership came fresh new ideas, efficient global sourcing of components, Silicon Valley engineering and a renewed emphasis on performance, reliability and design. Compared with products produced before this modern RELs play on average twice as loud, are twice as fast, cost far less for similar performance, and look far crisper and more modern than their predecessors.

2007
2007

Natural Sound Filtering

Modern REL input filters are exceptionally fast and are the true secret to producing perfect, seamless integration of the main speakers with REL subs. Simple, fast and cleverly designed to eliminate the bumps and discontinuities of competitors, these filters are the secret ingredient buried inside every REL.

2008
2008

Innovation Head of its Time

In 2008, REL shook the audiophile community with the original G1 subwoofer Line Array

2010
2010

Musical Instrument Grade Bracing

All modern REL designs use heavy duty bracing designed to break up cabinet resonance modes. Many competitors use little to no bracing and those that do frequently use a simple window pane brace that creates massive turbulence and noise inside the cabinet eventually resulting in blurring of detail. On our costlier models, we employ much more elaborate bracing and materials improve all the way up to laminated hardwood braces on our Reference grade products. Proper bracing breaks up boomy cabinet resonances that destroy the correct pitch of instruments far outside the bass region.

2010
2010

Carbon Fibre Driver Cones

With the advent of Gibraltar, we moved decisively to the head of the class with the Holy Grail of speed ,stiffness and self-quieting in a virtually perfect bass driver. The first reference series product to emerge from the modern REL was called the G-1 and in its first three months outsold the entirety of its predecessor’s 8 year long career. Since that debut, we use carbon whenever budget permits as it imparts speed, clarity and control down low that is unparalleled.

2010
2010

Ultra Speed Filters

These new Reference Series filters are as fast as theory permits a filter to be and many times faster than most competitors. Even something as arcane as setting correct phase becomes as clear and evident as turning on a light switch.

2014
2014

Zero Compression Wireless

Perhaps the name doesn’t fall trippingly from the tongue, however at a time when competitors were using antiquated Bluetooth-based systems wholly unsuitable for high end audio applications, we were setting the industry on its ear. First Longbow, using all discrete components—dedicated A/D encoders, D/A decoders and multiple dedicated power supplies and analog filters– showed how unbelievably great sounding wireless without the effects of digital compression could sound. One year later Arrow took the idea of wireless being sent broad bandwidth without the crutch of compression/expansion schemes and brought the price down by half. At REL, there is a restless urgency and a passion to get things right, then to see how far we can push these benefits down market so that the greatest number of people are helped by our team.

2016
2016

No. 25 Anniversary Model

No. 25 commemorates and celebrates our quarter century of building the finest sub bass systems, while pointing to the future and our next 25 years as it employs our most advanced design, engineering and craftsmanship. The No. 25 combines the power of an ultra-reliable 1,000 watt NextGen 3 Class D amplifier, with a lightweight and perfectly balanced carbon fibre 15” driver. All this is controlled by our legendary filter sets and proprietary crossovers with 2 separate parametric equalizers permitting remarkably flat in-room response, while maintaining the speed and resolution for which modern RELs have become known for.

2018
2018

Debut of Serie HT & HT-Air Wireless

Serie HT was designed specifically to answer the challenge of creating affordably priced, exceptionally dynamic, pure home theater powered subwoofers. With the ideal combination of a lightweight, modern CarbonGlas™ drivers coupled to a powerful Class D amplifier that runs cool, these subwoofers produce extraordinary dynamics.

For REL owners already enjoying our Reference, Serie S and T/i subwoofers designed for both 2-channel and theater use, the HT series was designed to supplement their system’s .1/LFE output to produce extremely high output for chest rumbling home theater special effects.

We’ve stripped back the High-Level feature from the Arrow™ wireless to provide a wireless system dedicated for Home Theater buffs, the HT-Air™. Though it is affordable, it retains our single-minded focus on delivering zero compression and maximum dynamics.

2019
2019

Debut of Serie S/510, S/812 and Airship wireless

The launch of Serie S/510 and S/812 introduced breakthrough innovations with PerfectFilters™. These filters extend bass below 20Hz for midsize offerings, utilize powerful 800-watt amplifiers, and deliver Line Array performance to a wider audience.

Notably, customers can build Line Arrays incrementally, purchasing one pair at a time. Airship debuts as a wireless solution for Serie S and Reference models. Featuring a state-of-the-art 5.8gHz chipset, Airship offers ultra-fast, uncompressed wireless transmission with longer range and improved sound quality compared to the older Longbow system.

2020
2020

Carbon Special and 212/SX launch

Carbon Special launches, combining the benefits of the new Serie S with increased cabinet volume and an 850-watt amplifier. It incorporates an upgraded G-1MKII driver in a compact design, delivering rich, natural sound with minimal texture, thanks to carbon fiber. With Line Array capability, it offers near-reference performance at half the price, making it an instant hit.

The 212/SX debuts to immediate acclaim, earning four "Best of 2020" awards within its first six months. It features upgraded drivers, PerfectFilters™, Airship compatibility, and dual 12-inch active drivers paired with dual 12-inch passive cones for massive output. With 1,000 watts of power, it caters to audiophiles who believe "too much is never enough.

2021
2021

Serie Tx Launch

Serie T/x launches, elevating REL’s entry-level series. Larger, heavier cabinets enable higher output, while improved FibreAlloy™ drivers feature lightweight aluminum center caps that stiffen the hot-pressed pulp cones for enhanced performance. Its elegant, curved modern design propels it to record-breaking sales.

2022
2022

Introduction of Serie HT MK II & Reference model updates

The Mk II of Serie HT (Home Theatre) is introduced, featuring upgraded amplifiers, faster CarbonGlas™ drivers, and reduced weight. The range delivers explosive effects for theater enthusiasts while maintaining a musical quality, balancing performance and affordability. The updated cabinetry adds a premium aesthetic.

Reference models No.32 and No.31 receive significant updates, including improved dual parametric filters, enhanced output limiting, and a richer tonal palette. Retaining their iconic string grilles, these models sound fuller and more effortless, driving a surge in Reference Line Array sales.

2023
2023

Classic 98 launch and T/9x SE Debuts

Classic 98 pays homage to mid-century modern design with premium walnut veneer and a powerful 300W amplifier paired with 10-inch drivers. Tuned for vintage-style sound, this model becomes the fourth best-seller during the holiday season.

The Italian Racing Red edition of the T/9x series debuts with Rosso Forza paint, triple chrome-plated badges, and chromed feet, offered at no additional charge. An upgraded carbon fiber driver reduces weight for faster,
harder-hitting performance.

2024
2024

Classic 99 joins the Classic line & Expanded colors in T/9x SE

Classic 99 launches as a larger, more powerful sibling to the Classic 98. It features a 500W amplifier and a 12-inch driver exclusive to this model, packaged in sumptuous walnut veneer with tasteful mid-century styling. The Classic 99 becomes a favorite among vintage sound enthusiasts.


Responding to popular demand, REL introduces orange and yellow variants of the T/9x. Drawing inspiration from supercar colors, these models include triple chrome-plated accents, carbon fiber trim, and superior drivers, combining performance with bold aesthetics.

2025
2025

2025, REL Acoustics proudly marks 35 years of redefining bass performance.

From our first breakthrough designs to shaping the future of deep, immersive sound, our journey has been driven by passion, precision, and innovation. As we celebrate this milestone, we remain committed to pushing the boundaries of audio excellence, ensuring that the next generation experiences bass perfected.

Here's to the past, present, and the future of sound.

Reviews & Awards

35 years of Impact on the Experience of Sound the REL way

Archive

REL Acoustics Ltd.

Our Customer Promise

We believe that once you’ve heard a REL, you’ll absolutely love it. So, we created a risk-free buying experience available only at rel.net for the United States

Free Shipping

Free Shipping

Ground shipping for all items purchased at REL.net is on us. No order minimum, no code required.

60 day home trial & free return

60 day home trial & free return

If you don’t fall in love with the way your system sounds, return it for an upgrade or complete refund. We’ll cover the return shipping.

60 day Price Protection

60 day Price Protection

If the price of the product you purchased from rel.net drops in the first 60-days after your purchase, we’ll credit you the difference.

Lifetime Customer Support

Lifetime Customer Support

From initial setup to troubleshooting a new component, you have access to our customer service and tech team throughout your entire ownership.

3 Year warranty

3 Year warranty

We offer a 3-year parts and labor warranty on all subwoofers sold through our website or authorized dealers. No matter where you buy, we’ve got you covered.

*Free shipping, 60-day free trial, free returns, and 60-day price protection apply only to subwoofers and accessories purchased directly from REL.net in the United States and United Kingdom. This offer excludes any subwoofers marked as final sale.