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Overview

Sonus faber Arena 20

Reference Cinema Sound. Built Into the Architecture.

High-Performance 3.5-Way In-Wall Loudspeaker

The Sonus faber Arena 20 brings the scale, dynamic authority, and musical refinement of a high-performance loudspeaker into a sophisticated architectural design. Developed as a versatile companion to the flagship Arena 30, it delivers substantial acoustic output while offering greater flexibility for custom home theater and premium media room installations.

Its advanced 3.5-way architecture combines dual 8-inch long-excursion woofers, two 6.25-inch mid/high-frequency transducers, and a 1.1-inch dome tweeter. Together, they create a powerful foundation for detailed dialogue, expansive soundtracks, and the effortless dynamics demanded by cinematic reproduction.

With 92 dB sensitivity, a maximum sound pressure level of 117 dB at one meter, and recommended amplifier power of up to 400 watts, the Arena 20 is engineered for serious listening environments.

Whether deployed as a high-performance surround speaker alongside the Arena 30 or as the left and right channels in a dedicated media room, the Arena 20 brings Sonus faber's approach to natural, emotionally engaging sound into the architecture of the space.


Engineered to Deliver More Than Ordinary Architectural Audio

Arena 20 Custom Installation Speaker | Sonus faber

Dual 8-Inch Long-Excursion Woofers

Two 203 mm low-frequency drivers provide the displacement and radiating area necessary for substantial bass output and cinematic impact.

Their long-excursion design supports the demanding dynamic requirements of movie soundtracks, giving the Arena 20 the ability to reproduce powerful effects and musical passages with authority.

With a specified frequency response extending to 55 Hz, the Arena 20 provides meaningful bass capability while remaining suitable for integration with dedicated subwoofers in a complete cinema system.


Arena Collection - Details and Features | Sonus faber

Dedicated Midrange and High-Frequency Reproduction

The Arena 20 incorporates two 6.25-inch mid/high-frequency transducers and a 28 mm dome tweeter.

This sophisticated driver configuration allows the speaker to distribute acoustic duties across specialized transducers, supporting vocal intelligibility, instrumental detail, and a cohesive presentation across the frequency spectrum.

The manufacturer's published crossover points of 160 Hz, 220 Hz, and 3,100 Hz reflect its 3.5-way acoustic architecture.


Sonus Faber ARENA 20 In-Wall Speaker (Single)
 – Nintronics UK

A Purpose-Built Closed-Box Enclosure

The Arena 20 incorporates a dedicated closed-box cabinet rather than relying on the surrounding wall cavity to form its acoustic enclosure.

This provides a defined internal volume for the drivers, helping deliver predictable performance across different installations.

Constructed using leather and aluminum, the cabinet reflects Sonus faber's combination of acoustic engineering and premium materials.


The Perfect Companion to Arena 30

Arena 20 Custom Installation Speaker | Sonus faber

The Arena 20 was developed to extend the capabilities of Sonus faber's larger Arena 30 into more flexible system configurations.

Its substantial driver complement and long-excursion woofers make it particularly suitable for use as a surround loudspeaker in a high-performance private cinema.

In this configuration, the Arena 20 can complement the front soundstage established by the Arena 30, supporting the reproduction of directional effects, ambient information, and complex multichannel soundtracks.

For media rooms and installations where a more compact architectural solution is required, the Arena 20 can also serve as the primary left and right loudspeakers.

This versatility allows system designers to tailor the speaker configuration to the room's dimensions, seating arrangement, screen size, and performance requirements without sacrificing the cohesive character of the Arena collection.


117 dB of Cinematic Output

117 dB

Maximum SPL at 1 meter

400 W

Maximum recommended amplifier power

92 dB

Sensitivity (2.83V/1m)

55 Hz

Specified low-frequency extension


Manufacturer-published specifications.
Sonus faber

A truly engaging cinema experience depends on a loudspeaker's ability to reproduce both the quietest details and the most demanding dynamic passages.

The Arena 20's specified maximum output of 117 dB at one meter provides substantial acoustic capability for demanding home theater applications.

Its 92 dB sensitivity and recommended amplifier power of up to 400 watts allow system designers to pair the speaker with appropriately selected amplification, while its nominal 4-ohm impedance makes amplifier compatibility an important consideration.

When integrated with a capable surround processor, dedicated subwoofers, proper bass management, and professional room calibration, the Arena 20 can contribute to a cohesive listening experience throughout the theater.


Architectural Integration Without Compromise

Sonus Faber Arena 20. Instalacyjny głośnik ścienny.

At approximately 62 inches tall and just 12.6 inches wide, the Arena 20 offers a tall, narrow architectural format that can be incorporated into custom wall treatments and dedicated theater designs.

Its 5.7-inch mounting depth allows the speaker to be integrated into appropriately constructed wall assemblies, while an optional square magnetic grille provides a discreet finish that protects the drivers without visually dominating the room.

The Arena 20's substantial 103.6-pound weight should be considered during the design phase, with suitable structural support and installation clearances incorporated into the project.

For luxury residential installations, this approach allows the audio system to deliver serious performance while the screen, interior finishes, furnishings, and lighting remain the visual focus.

The result is a loudspeaker designed to command attention acoustically, not visually.


The Natural Sound of Sonus faber, Reimagined for Cinema

Dali Phantom M-80 A – Angled In Ceiling Speaker - Audio Experience

Sonus faber has built its identity around the relationship between acoustic engineering, craftsmanship, and the emotional experience of listening to music.

The Arena collection extends that philosophy into the world of custom-installed home cinema, where loudspeakers must deliver substantial output while integrating into the architecture of the room.

The Arena 20 offers a balance of high-output capability, installation flexibility, and sophisticated acoustic design.

Its 3.5-way configuration, dual long-excursion woofers, and dedicated enclosure provide the foundation for demanding cinematic applications, while its versatility allows it to serve different roles within a multichannel system.

Whether reproducing the atmosphere of a quiet scene, the complexity of an orchestral score, or the impact of a dramatic action sequence, the Arena 20 is designed to make the soundtrack an essential part of the experience.


Technical Specifications

Sonus faber Arena 20

 


Specification

Details

System

3.5-way, closed-box, in-wall

Tweeter

1 × 1.1" (28 mm) dome

Mid/High-Frequency Drivers

2 × 6.25" (159 mm)

Woofers

2 × 8" (203 mm), long excursion

Frequency Response

55 Hz – 31,500 Hz

Sensitivity

92 dB SPL (2.83V/1m)

Nominal Impedance

4 ohms

Maximum SPL

117 dB at 1 meter

Recommended Amplifier Power

Up to 400 W

Crossover Frequencies

160 Hz / 220 Hz / 3,100 Hz

Connections

2 binding-post connectors

Dimensions (H × W × D)

62.1" × 12.6" × 5.9"

Dimensions (Metric)

1,577 × 321 × 150 mm

Mounting Depth

5.7" (144 mm)

Weight

103.6 lbs (47 kg) each

Cabinet

Leather and aluminum

Grille

Optional square magnetic grille


Experience Sonus faber at The Grid HiFi

A reference-level home theater requires more than exceptional loudspeakers. Speaker placement, amplification, room acoustics, bass management, and calibration all contribute to the finished experience.

At The Grid HiFi in Houston, we specialize in designing and installing premium private cinemas that bring together world-class audio, projection, large-format video, architectural integration, lighting, and intelligent home automation.

As a Sonus faber Reference Dealer, our team can help you explore the Arena collection and develop a complete system around your room's dimensions, seating layout, screen configuration, and performance goals.

From initial design and speaker placement to installation and final calibration, we bring every element together to create a cohesive cinematic experience.

Contact The Grid HiFi to begin designing your custom Sonus faber home theater.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.