1.888.955.6000
 
 
1-888-955-6000
crutchfield.com
Crutchfield

Free Shipping on Everything

60-Day Money-Back Guarantee  |  Lifetime Tech Support

Focal K2 Power 46 KX 4

18" subwoofer with four 1-ohm voice coils

Watch video
Zoom
  • Focal K2 Power™ 46 KX 4

    Front

Crutchfield OMC logo
We don't check this item for fit or compatibility.

Item# 09146KX4 offer details

By buying this product you'll earn up to 2000 Rewards points.

When you sign up for a Crutchfield account, you’ll be enrolled in Crutchfield Rewards. You’ll earn one point for every dollar you spend on gear from us. You can turn your points into Rewards Cards that you can use toward future purchases. You can sign up for an account now, or after you complete your purchase (you’ll get credit for the points either way).

 
Focal

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Our take on the Focal K2 Power™ 46 KX 4

by 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.

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 aluminum 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 high-density foam surround maintains control of the cone, even during deep excursion. Focal's unique composite sandwich cone employs a structural foam central core coated with layers of Kevlar on the front and back sides. 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 efficient K2 Power 46 KX 4 18" subwoofer up to 1,000 watts RMS without fear. This behemoth works with a ported enclosure to produce powerful, accurate bass, and its four 1-ohm voice coils allow you to get creative with your wiring setup. 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.

Highlights:

  • 18" subwoofer with quadruple 1-ohm voice coils
  • Kevlar/foam sandwich cone with high-density foam surround
  • multiferrite magnet for precise motor structure linearity
  • aluminum basket
  • power range: 100-1,000 watts RMS (250 watts per voice coil)
  • peak power handling: 2,000 watts
  • frequency response: 20-500 Hz
  • sensitivity: 93.35 dB
  • top-mount depth: 7-3/4"
  • ported box volume: 2.82-4.24 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee
Shop all Focal Component Subwoofers

    Priced per speaker

     

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs

    Features and Specs
    Size
    Loading...
    18 -inch
    Impedance
    Loading...
    1 ohms
    Cone Material
    Loading...
    Kevlar/Foam
    Surround Material
    Loading...
    High density foam
    Ideal Sealed Box Volume (cubic feet)
    Loading...
    N/A
    Ideal Ported Box Volume (cubic feet)
    Loading...
    N/A
    Port diameter (inches)
    Loading...
    4
    Port length (inches)
    Loading...
    4.33
    Free-Air
    Loading...
    No
    Dual Voice Coil
    Loading...
    Yes
    Sensitivity
    Loading...
    96.5 dB at 2.83 watts
    93.35 dB at 1 watt
    Frequency Response
    Loading...
    20 - 500 Hz
    RMS Power Range (Watts)
    Loading...
    100-1000
    Peak Power Handling (Watts)
    Loading...
    2000
    Top Mount Depth (inches)
    Loading...
    7 3/4
    Bottom Mount Depth (inches)
    Loading...
    N/A
    Cutout Diameter or Length (inches)
    Loading...
    16 7/8
    Vas (liters)
    Loading...
    206.3
    Fs (Hz)
    Loading...
    29.4
    Qts
    Loading...
    0.345
    Xmax (millimeters)
    Loading...
    10
    Parts Warranty
    Loading...
    1 Year
    Labor Warranty
    Loading...
    1 Year

    Product Research

    Product Research
    What's in the box?

    Download owner's manual

    • One 18" Woofer with four 1-ohm voice coils
    • Cloth cover (for magnet)
    • Manual (English/ French)
    • Serial number card
    • FOCAL logo sticker

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Features
    Enclosure Compatibility

    Features

    K2 Composite Sandwich Membrane/Cone: The FOCAL K2 Power 46 KX 4 features a composite sandwich membrane/cone comprised of a foam layer, sandwiched between two Kevlar layers. The result is a material structure that is rigid, yet light weight, and allows fast bass response without distortion.

    Voice Coils: The four 1-ohm voice coils are 8 layer, 3" diameter, copper windings on an aluminum former, resulting in high power handling, low distortion, and impedance flexibility. When the voice coils are wired in parallel, the woofer presents a 1/4-ohm load. When the voice coils are wired in series, the woofer presents a 4-ohm load.

    High-Performance Spider: The 46 KX 4 features a high-performance spider with the tinsel leads sandwiched between the two layers to eliminate wire fatigue.

    Spring-Posts: The woofer features four sets of nickel-plated spring-post speaker terminals that will accept pin connectors, dual and single banana plugs, and bare wire up to 8-gauge.

    Enclosure Compatibility

    Ported Box Volume: The 46 KX 4 is designed to be installed in a ported box with a volume between 2.82 ft³ and 4.24 ft³. FOCAL highlights three specific enclosures in the manual:

    • 2.82 ft³: Fast and tight bass, -3dB frequency of 45 Hz
    • 3.53 ft³: Punchy and dynamic bass, -3dB frequency of 40 Hz
    • 4.24 ft³: Deep and articulate bass, -3dB frequency of 37 Hz
     

    Product Reviews

    Be the first to review this product
    Great Gear Giveaway rewards card

    Submit a review and you will be entered to win a $150 gift card

    Crutchfield Great Gear Giveaway Official Sweepstakes Rules

    Review this product:

    Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

    Your email won't be visible. Please use the email address that is associated with your order.
    (e.g., JohnD) Your review will be signed using the display name and location
    (e.g., Charlottesville, VA)

    Click on a star to rate the overall product on a scale of 1-5
    Rate the following specific attributes
      Value
     Sound Quality
     Ease of Use
     "Coolness Factor"
     Build Quality
    1500 characters left
    Attach a YouTube Review
    Crutchfield Video Review Guidelines
    • Only submit videos that you made or are authorized to use.
    • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
    • Please see our Review Guidelines for more information.
    500 characters left
    500 characters left

    Accessories

    Add accessories for the Focal K2 Power™ 46 KX 4

    It's critical to have good wire, and none is included with the sub. See all categories & accessories

    StreetWires 14-gauge Super Cable™ Speaker Wire Translucent blue jacket — priced per foot (Clear)
    3 people say 
    Your Price: $1.49
    Add to Cart
    StreetWires 16-gauge Super Cable™ Speaker Wire Blue jacket — priced per foot
    17 people say 
    Your Price: $0.49
    Add to Cart
    StreetWires 12-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot
    56 people say 
    Your Price: $1.99
    Add to Cart
    StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot
    30 people say 
    Your Price: $1.49
    Add to Cart
    7 people say 
    Your Price: $39.99
    Add to Cart
    Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
    7 people say 
    Your Price: $0.39
    Add to Cart
    Dynamat Xtreme Trunk Kit 5 sheets, 20 square feet
    11 people say 
    Your Price: $169.99
    Add to Cart
    Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612)
    7 people say 
    Your Price: $69.99
    Add to Cart
    Dynamat Xtreme Wedge Pack 1 sheet, 4 square feet
    3 people say 
    Your Price: $39.99
    Add to Cart
    Dynamat Dynaliner One 54" x 32" sheet (1/8" thick)
    2 people say 
    Your Price: $69.99
    Add to Cart
    Dynamat 19100 License Frame Kit
    8 people say 
    Your Price: $14.99
    Add to Cart
    1 person says 
    Your Price: $5.99
    Add to Cart
    3 people say 
    Your Price: $9.99
    Add to Cart
    2 people say 
    Your Price: $9.99
    Add to Cart
    Metra Speaker Terminal Round terminal cup with binding post connectors (for do-it-yourself box builders)
    2 people say 
    Your Price: $9.99
    Add to Cart
    Metra Speaker Terminal Square terminal cup with binding post connectors (for do-it-yourself box builders)
    3 people say 
    Your Price: $9.99
    Add to Cart
    Metra Speaker Terminal Round terminal cup with spring clip connectors (for do-it-yourself box builders)
    3 people say 
    Your Price: $3.99
    Add to Cart
    Metra Speaker Terminal Square terminal cup with spring clip connectors (for do-it-yourself box builders)
    2 people say 
    Your Price: $3.99
    Add to Cart
     
    Your Price: $69.95

    After $10.00 Price Break

    Add to Cart
    Autosound 2000 Disc One Low Frequency Test CD (Disc One)
    1 person says 
    Your Price: $19.99
    Add to Cart

    Smart people protect with SquareTrade- The best warranty at the best price

    SquareTrade Warranty
    SquareTrade Warranty 3 Year Warranty
    Your Price: $195.99
    Add to Cart
    SquareTrade Warranty
    SquareTrade Warranty 4 Year Warranty
    Your Price: $284.99
    Add to Cart

    In business since 1999, SquareTrade is the largest independent warranty provider in the U.S.

    100% parts and labor - no deductibles

    All mechanical and electrical failures covered, includes normal wear and tear.

    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Focal K2 Power™ 46 KX 4, please visit the Crutchfield website product page (/S-uGGHtuXiXvD/p_09146KX4/Focal-K2-Power-46-KX-4.html ).

    Recommended Accessories See more accessories

    Your featured item

    Focal K2 Power™ 46 KX 4
    Focal K2 Power™ 46 KX 4
    18" subwoofer with four 1-ohm voice coils
    $1,999.99
     
     

    Speaker Wire

    StreetWires 14-gauge Super Cable™ Speaker Wire
    Translucent blue jacket — priced per foot (Clear)
    $1.49
    In Stock
     
     

    Dynamat

    Dynamat Xtreme Trunk Kit
    5 sheets, 20 square feet
    $169.99
    In Stock
     
     

    Box Hardware

    Rubber Feet
    $5.99
    In Stock
     
     

    Protect your gear with an extended warranty

    Add 3 Year Warranty
    Square Trade Warranty
    $195.99
    In Stock
     
     
    Square Trade Warranty
    $89.00
    In Stock
     
     
    Add selected to cart
     
    • Front

      Focal K2 Power™ 46 KX 4