Contact us
Close contact box

Focal Utopia Be® 21 WX

8" 4-ohm subwoofer

Item # 09121WX

Focal's top-of-the-line Utopia Be speakers exemplify Focal's dedication to musical perfection.

Focal's top-of-the-line Utopia Be speakers exemplify Focal's dedication to musical perfection.

Need help?
Contact our Virginia-based experts.
Discontinued item

Item # 09121WX

About the Focal Utopia Be® 21 WX

Focal's top-of-the-line Utopia Be speakers exemplify Focal's dedication to musical perfection. The sound enthusiasts at Focal worked without constraints to develop what they consider to be the ultimate in speaker technology. Utopia Be subwoofers employ unique materials and unparalleled construction to add incomparable dynamics and natural sound to your system.

Focal's top-of-the-line Utopia Be speakers exemplify Focal's dedication to musical perfection. The sound enthusiasts at Focal worked without constraints to develop what they consider to be the ultimate in speaker technology. Utopia Be subwoofers employ unique materials and unparalleled construction to add incomparable dynamics and natural sound to your system.

Focal's composite sandwich "W" cone features a layer of durable structural foam between two layers of precision-coated glass — the resulting membrane demonstrates exceptional agility, rigidity, and damping to produce realistic bass notes without distortion. A supple rubber surround maintains precise control over the cone, even during extreme excursion. A massive multi-element magnet, high-linearity voice coil, and zinc alloy basket give the sub rock-solid power and strength.

The Utopia Be 21 WX 8" subwoofer represents the pinnacle of Focal's pursuit of perfect-sounding, full-bodied bass. It handles up to 250 watts RMS and works best in compact sealed enclosures. Utopia is defined as an "ideal place or state," and these hand-crafted Focal subs let you take your music to that level.


Priced per speaker

READ LESS

Product highlights:

  • 8" 4-ohm subwoofer
  • "W" structured foam and glass composite sandwich cone with rubber surround
  • zamak (zinc alloy) basket
  • multiferrite magnet
  • power handling: 50-250 watts RMS (500 watts peak power)
  • frequency response: 29-500 Hz
  • sensitivity: 82.63 dB
  • top-mount depth: 4-3/16"
  • sealed box volume: 0.52-1.06 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 21WX

What's in the box:

  • One 8" Single voice coil 4-ohm woofer
  • Six 7/8" Hex-head mounting screws
  • Grille
  • Adhesive backed foam gasket
  • User manual
  • FOCAL logo sticker

Customer reviews

We don't have any reviews, yet.
Submit a review and then enter to win a $350 rewards card.
Be the first to review this product

Loading reviews...

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pros:

Cons:

Crutchfield response

<< >>

More details on the Focal Utopia Be® 21 WX

Pat M.

Product Research

Features
Enclosure Compatibility

Features

"W" Composite Sandwich Cone Woofer: The Focal 21 WX Be 8" subwoofer features a "W" composite sandwich cone woofer. The rigidity of the glass layers delivers extreme linearity over a wide frequency range without and low frequency distortion. The structural foam central core's lightness allows optimal acceleration, without delay, while damping derived from the "W" material produces a neutral, coloration free sound.

Rubber Surround: The long-throw rubber surround provides long excursion, deep bass (29-500Hz), and added durability to promote long life.

Multi-Ferrite Magnets: The woofer utilizes six double-stacked Ferrite magnets (12 total) to create a powerful magnetic field to help suppress compression and offer better power handling. The Multi-Ferrite motor assembly also aids the natural cooling of the woofer's voice coil.

Die Cast (Zamak) Vented Basket: The 21 WX Be features a vented die-cast Zamak basket which is a rigid, non-magnetic, and non-resonant frame that provides a strong, reliable structure for the woofer. The vented basket provides a self-regulated coil cooling system which allows air to flow freely, preventing heat build-up.

Spring Posts: The wiring terminals are spring posts which accommodate pin connectors, single banana plugs, dual banana plugs (standard 3/4" width) or bare speaker wire up to 10 gauge.

Enclosure Compatibility

Sealed Enclosure: The two sealed enclosure volumes Focal recommends are 15 liters (0.53 ft³, resulting in a -3dB point of 45 Hz) and 30 liters (1.06 ft³, resulting in a -3dB point of 43 Hz).

Ported Enclosure: The Focal recommends a ported enclosure of 30 liters (1.06 ft³) with a 2" diameter x 5-1/4" long port tube, resulting in a tuning frequency of 34 Hz and a -3dB point of 29 Hz.

Loading accessories...

Customer Q&A

Loading articles...

TOP