About the Focal K2 Power™ 27 KX
This sub's name gets straight to the point — Focal's 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 27 KX 11" subwoofer up to 300 watts RMS without fear. This 4-ohm sub works best in sealed enclosures to produce bass that's highly accurate and plenty forceful. 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.
Priced per speaker
Product highlights:
- 11" 4-ohm subwoofer
- Aramid fiber/foam/glass composite sandwich cone with butyl rubber surround
- multiferrite magnet for precise motor structure linearity
- zamak (zinc alloy) basket
- power range: 100-300 watts RMS
- peak power handling: 600 watts
- frequency response: 35-1,500 Hz
- sensitivity: 81.21 dB
- top-mount depth: 4-11/16"
- sealed box volume: 0.71-1.41 cubic feet
- warranty: 1 year
- MFR # 27KX
What's in the box:
Focal K2 Power™ 27 KX owner's manual
- One 11" SVC 4-ohm woofer
- 6 Hex-head mounting bolts
- 6 Nuts
- Self-adhesive foam gasket
- Cloth cover (for magnet)
- User/Warranty Manual (Eng/Fre)
- Serial number card
- FOCAL logo sticker
- "Remove Before Using" note (attached to speaker terminals of woofer)
Customer reviews for Focal K2 Power™ 27 KX
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More details on the Focal K2 Power™ 27 KX
Features & specs
Features and Specs | ||
---|---|---|
Size | 11 -inch | |
Impedance (Ohms) | --- | |
Cone Material | Kevlar/foam/glass | |
Surround Material | Butyl rubber | |
Port diameter (inches) | N/A | |
Port length (inches) | N/A | |
Free-Air | No | |
Dual Voice Coil | No | |
Sensitivity |
88 dB at 2.83 volts 81.21 dB at 1 watt | |
Frequency Response | 35 - 1500 Hz | |
Max RMS Power Handling | 300 | |
Peak Power Handling (Watts) | 600 | |
Top Mount Depth (inches) | 4 11/16 | |
Bottom Mount Depth (inches) | N/A | |
Cutout Diameter or Length (inches) | 9 3/16 | |
Frame Width | 10.635 | |
Frame Length | 10.635 | |
Vas (liters) | 14.92 | |
Fs (Hz) | 48 | |
Qts | 0.908 | |
Xmax (millimeters) | 9 | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Box Requirements | ||
Ideal Sealed Box Volume (cubic feet) | 1.06 | |
Minimum Sealed Box Volume (cubic feet) | 0.71 | |
Maximum Sealed Box Volume (cubic feet) | 1.41 | |
Ideal Ported Box Volume (cubic feet) | N/A | |
Minimum Ported Box Volume (cubic feet) | N/A | |
Maximum Ported Box Volume (cubic feet) | N/A |
Product Research
Features
Enclosure Compatibility
Features
K2 Composite Sandwich Membrane/Cone: The FOCAL K2 Power 27KX 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 (300 watts RMS/600 watts Peak), and has low distortion characteristics.
NBR Surround: The FOCAL K2 Power 27KX features a long-throw NBR (Nitrile Butyl Rubber) surround for long excursion, deep bass (35-1500Hz), and added durability to promote long life.
Copper Voice Coil: The FOCAL K2 Power 27KX features an edge-wound copper 1 layer/2.55" voice coil on a Kapton former (aluminum).
High-Performance Spider: The K2 Power 27KX 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 27KX woofer utilizes six dual-stacked Ferrite magnets (12 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 (88db), higher power handling capabilities, and natural cooling of the woofer's voice coil.
Die Cast (Zamak) Vented Basket: The FOCAL K2 Power 27KX 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 11" 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 27KX 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 27KX 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 27KX is designed to be installed in a sealed box with a volume between 0.71 cu/ft to 1.41 cu/ft. FOCAL recommends a sealed enclosure made out of 3/4" MDF with an internal volume of 1.06 cu/ft.
Sealed Enclosure Specifications (using 3/4" MDF construction) | |||
---|---|---|---|
Internal Volume | 0.71 c/ft. | 1.06 cu/ft. | 1.41 cu/ft. |
Dimensions | Width: 16.125" Height: 11.75" Depth1: 16.125" Depth2: 7.0625" | Width: 14.9375" Height: 14.5625" Depth1: 14.5625" Depth2: 9.3125" | Width: 19.25" 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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Dpek's description, above, also captures my experience with this sub. Buy a W7 if you're after more boom and SPL. Buy the Focal if you prefer detail in your music. An incredible component.
RickyG from Calgary, Alberta