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Focal K2 Power™ 33 KX 13" subwoofer with dual 2-ohm voice coils

Item # 09133KX

This sub's name gets straight to the point — the Focal K2 Power subwoofer delivers hard-hitting low end that...

This sub's name gets straight to the point — the Focal K2 Power subwoofer delivers hard-hitting low end that...

1 question - 1 answer

Item # 09133KX

Shop all Focal Component Subwoofers

About the Focal K2 Power™ 33 KX

Dominic DeVito
This sub's name gets straight to the point — the Focal K2 Power subwoofer delivers hard-hitting low end that combines realistic reproduction with competition-level sound pressure. Precision engineering and hand-assembled construction make this sub a sound choice for a high-performance bass system.

This sub's name gets straight to the point — the Focal K2 Power subwoofer delivers hard-hitting low end that combines realistic reproduction with competition-level sound pressure. Precision engineering and hand-assembled construction make this sub a sound choice for a high-performance bass system.

Powerful magnet
A massive multi-element magnet provides the backbone for the sub's powerful reputation — its circular array provides a uniform field across the entire width of the sub, driving the motor assembly with unerring precision. Focal anchors the K2 Power sub with a rugged zamak zinc alloy basket for dependable performance that won't get bent out of shape by your music.

3-layer cone
At the top end of the sub, a butyl rubber surround maintains control of the cone, even during deep excursion. Focal's unique composite sandwich cone employs a structural foam central core coated with a layer of Aramid fiber on the front and a glass layer on the back side. The three layers together form an incredibly rigid yet lightweight membrane for high-quality sound reproduction with the added emphasis of thunderous sound pressure.

Assembled and inspected by hand
You can feed the K2 Power 33 KX 13" subwoofer up to 400 watts RMS without fear. This sub produces bass that's highly accurate and plenty forceful, and its dual voice coils provide multiple wiring options for your system. Focal assembles each sub by hand and rigorously inspects them for any flaws to ensure your investment performs to the high sound standards they've set.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most 2-channel car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation. Most mono amps are stable down to 2 ohms.

Priced per speaker

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Product highlights:

  • 13" subwoofer with dual 2-ohm voice coils
  • Aramid fiber/foam/glass composite sandwich cone with butyl rubber surround
  • multiferrite magnet for precise motor structure linearity
  • zamak (zinc alloy) basket
  • power range: 50-400 watts RMS (200 watts per voice coil)
  • peak power handling: 800 watts
  • frequency response: 30-1,000 Hz
  • sensitivity: 84.24 dB
  • top-mount depth: 6-3/8"
  • sealed box volume: 1.06-1.77 cubic feet
  • grille not included
  • warranty: 1 year
  • MFR # 33KX

What's in the box:

  • One 13" DVC 2-ohm woofer
  • 8 Hex-head mounting bolts
  • 8 Nuts
  • Self-adhesive foam gasket
  • Cloth cover (for magnet)
  • User/Warranty Manual (Eng/Fre)
  • Serial number card
  • FOCAL logo sticker
  • 2 "Remove Before Using" notes (attached to speaker terminals of woofer)

Customer reviews for Focal K2 Power™ 33 KX

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More details on the Focal K2 Power™ 33 KX

Pat M.

Product Research

Features
Enclosure Compatibility

Features

K2 Composite Sandwich Membrane/Cone: The FOCAL K2 Power 33KX features a composite sandwich membrane/cone comprising of Kevlar, foam, and a Kevlar material structure that is rigid, yet light weight, and allows fast bass response without distortion. This cone structure features a thermoformed, structural foam central core, coated with an Aramid fiber layer on the front side and a glass layer on the back side. This hybrid technology significantly improves membrane rigidity without raising the weight and allows long coil, distortion free bass even at high levels. This composite sandwich membrane/cone design offers an extremely rigid structure, improves power handling (400 watts RMS/800 watts Peak), and has low distortion characteristics.

NBR Surround: The FOCAL K2 Power 33KX features a long-throw NBR (Nitrile Butyl Rubber) surround for long excursion, deep bass (30-1000Hz), and added durability to promote long life.

Copper Voice Coil: The FOCAL K2 Power 33KX features an edge-wound copper, 4 layer/2.6", dual 2-ohm voice coil on a Kapton former (aluminum) for high power handling, bass without distortion and impedance flexibility to allow an optimized connection with the amplifier.

Dual 2-ohm Voice Coils: This woofer features dual 2-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel with each other, the woofer presents a 1-ohm mono load. When the voice coils are wired in series with each other, the woofer presents an 4-ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2-ohm load.

High-Performance Spider: The K2 Power 33KX features a high-performance spider with integrated braids to form one complete layer. This spider configuration eliminates wire fatigue, as well as wear-and-tear on the wire.

Multi-Ferrite Magnets: The K2 Power 33KX woofer utilizes six triple-stacked Ferrite magnets (18 total) to create a powerful magnetic field to help suppress compression and give better power handling. This Multi-Ferrite motor assembly allows for greater efficiency (90db), higher power handling capabilities, and natural cooling of the woofer's voice coil.

Die Cast (Zamak) Vented Basket: The FOCAL K2 Power 33KX 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 and optimized reliability and performance consistency.

Spring-Posts: The FOCAL 13" woofer is equipped with a pair of nickel-plated spring-post speaker terminals for easy connection up to 10AWG wire.

Foam Gasket: The K2 Power 33KX comes supplied with a self-adhesive foam gasket mounting-ring for better chassis damping and to prevent air leakage.

Removable Cloth Cover: The K2 Power 33KX woofer comes with a cloth cover to protect the magnet from scratches or smudging during transport, handling, and installation. The cloth cover should be removed once the woofer is installed. The cloth cover is not designed to be placed on the woofer after it has been installed.

Enclosure Compatibility

Recommended Sealed Box Volume: The FOCAL K2 Power 33KX is designed to be installed in a sealed box with a volume between 1.06 cu/ft to 1.77 cu/ft. FOCAL recommends a sealed enclosure made out of 3/4" MDF with an internal volume of 1.41 cu/ft.

Sealed Enclosure Specifications (using 3/4" MDF construction)

Internal Volume 1.06 c/ft. 1.41 cu/ft. 1.77 cu/ft.
Dimensions Width: 14.9375"
Height: 14.5625"
Depth1: 14.5625"
Depth2: 9.3125"
Width: 19.25"
Height: 14.5625
Depth1: 14.5625"
Depth2: 9.3125"
Width: 23.8125"
Height: 14.5625"
Depth1: 14.5625"
Depth2: 9.3125"
Bass Type fast and tight bass Punch and dynamic bass Deep and articulate bass

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Customer Q&A

1 question already asked

Q
What gauge speaker wire should the focal K2 Power 33 KX 13" Sub-Woofer use for maximum power to the sub: E.I. say 2000watts-Peak & 400 wattsRMS, To not overload the speaker leads in a heavy pull say 3 to 4 minutes consistanly?? Any info would be greatly appreciated thanks!!
michael  Jul 06, 2015
1 answer
A
I forwarded your question to an Advisor and they responded with the following: To make sure that the subwoofer gets the maximum performance, I would go with 12 gauge speaker wire. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
kristina  Jul 07, 2015 (Staff)

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