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Focal Polyglass 27 V2

11" subwoofer with dual 4-ohm voice coils

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  • Focal Polyglass 27 V2

  • Focal Polyglass 27 V2

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Our take on the Focal Polyglass 27 V2

by Dominic Devito
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.

Focal's Polyglass subwoofer uses precision craftmanship and advanced materials to create a big bass impression. Focal creates the Polyglass cone by depositing a layer of hollow glass microbeads over a layer of cellulose. This unique material combines the warm sound of cellulose with the incredible strength of glass, for a cone that responds rapidly with low resonance. The exceptionally resilient zinc alloy basket teams up with the Polyglass cone, butyl rubber surround, and an advanced motor structure to deliver uncolored bass that'll please the discerning ear.

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The Polyglass 27 V2 11" subwoofer handles up to 300 watts RMS, and Focal optimizes this sub to work in sealed enclosures for ultra-tight, accurate reproduction. The dual 4-ohm voice coils allow you to draw maximum power from your mono sub amplifier. Complete your system with an enclosure, a compatible amp, and some wiring to experience Focal's bass finesse.

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.

To drive this single subwoofer, we recommend a mono amplifier rated between 225 and 450 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Highlights:

  • 11" subwoofer with dual 4-ohm voice coils
  • Polyglass cone with butyl rubber surround
  • zamak (zinc alloy) basket
  • power range: 50-300 watts RMS (150 watts per voice coil)
  • peak power handling: 600 watts
  • frequency response: 35-500 Hz
  • sensitivity: 84.19 dB
  • top-mount depth: 5-1/8"
  • sealed box volume: 0.53-1.06 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per speaker

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

Features and Specs
Size 11 -inch
Impedance 4 ohms
Cone Material Polyglass
Surround Material Butyl rubber
Ideal Sealed Box Volume (cubic feet) 0.71
Ideal Ported Box Volume (cubic feet) N/A
Port diameter (inches) N/A
Port length (inches) N/A
Free-Air No
Dual Voice Coil Yes
Sensitivity 88 dB at 2.83 watts
84.19 dB at 1 watt
Frequency Response 35 - 500 Hz
RMS Power Range (Watts) 50-300
Peak Power Handling (Watts) 600
Top Mount Depth (inches) 5 1/8
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 9 3/16
Vas (liters) 21.32
Fs (Hz) 38.51
Qts 0.63
Xmax (millimeters) 11
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • 11" DVC 4-ohm woofer
  • 6 Hex-head mounting bolts
  • 6 Nuts
  • Self-adhesive foam gasket
  • User Manual (Eng/Fre)
  • Serial number card
  • FOCAL logo sticker
  • 2 "Remove Before Using" notes (attached to each pair of speaker terminals of woofer)

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

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

Polyglass Cone: The FOCAL Polyglass 27V2 features an 11" polyglass cone woofer for a wide, dynamic frequency response of 35-500Hz that offers neutral, coloration free sound. The uniform deposit of hollow-glass microballs over the entire cellulose pulp cone greatly increases its rigidity without adding significant weight, so you get a woofer that is durable, yet efficient, and sounds great.

NBR Surround: The FOCAL Polyglass 27V2 features a NBR (Nitrile Butyl Rubber) surround for long excursion, deep bass, and added durability to promote long life.

Kapton Former Voice-Coil: The Polyglass 27V2 woofer features a 4 layer, 2.5625" diameter, dual 4-ohm, Kapton former (aluminum) voice-coil for higher power handling capabilities up to 300 watt (RMS) and 600 watt (Peak).

Dual 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel with each other, the woofer presents a 2-ohm mono load. When the voice coils are wired in series with each other, the woofer presents an 8-ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 4-ohm load.

Louvered Cooling System: The Polyglass 27V2's Louvered Cooling System is self-regulated ventilation system which increases air cooling, prevents heat build-up, and provides optimized reliability with performance consistency.

156mm Magnet: The Polyglass 27V2 woofer features dual 156mm (6.125") ferrite magnets for higher sensitivity up to 88dB (2.83V/1m).

Die Cast Chassis: The FOCAL Polyglass 27V2 features a die-cast Zamak chassis which is a rigid, non-magnetic, and non-resonant frame that provides a strong, reliable structure for the woofer.

Spring-Posts: The FOCAL 11" woofer is equipped with two pair of nickel-plated spring-post speaker terminals for easy connection up to 10AWG wire.

Foam Gasket: The Polyglass 27V2 comes supplied with a self-adhesive foam gasket mounting-ring for better chassis damping and to prevent air leakage.

Enclosure Compatibility

Recommended Sealed Box Volume: The FOCAL Polyglass 27V2 is designed to be installed in a sealed box with a volume between 0.53 cu/ft to 0.106 cu/ft. FOCAL recommends a sealed enclosure made out of 3/4" MDF with an internal volume of 0.71 cu/ft.

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

Internal Volume 0.53 cu/ft. 0.71 cu/ft. 0.106 cu/ft.
Dimensions Width: 14.1875"
Height: 11.0"
Depth1: 11.0"
Depth2: 7.0625"
Width: 16.125"
Height: 11.75"
Depth1: 16.125"
Depth2: 7.0625"
Width: 14.9375"
Height: 14.5625"
Depth1: 14.5625"
Depth2: 9.3125"
Bass Type Fast and tight bass Punch and dynamic bass Deep and articulate bass
 

Product reviews from the Crutchfield Labs (what are the Labs?)

Video: Introduction to Focal Car Audio

Video: Introduction to Focal Car Audio

by Zak Billmeier, Ken Nail
 
Video: Introduction to Focal Car Audio

Crutchfield's car audio experts Ken and Zak present an overview of Focal car audio products. Focal is a leading name in high-quality sound and Crutchfield is proud to have them in our lineup.

 
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Focal Polyglass 27 V2 Reviews

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5 out of 5

Focal fan

Written By Ryman, Zionsville, IN on Tuesday, August 13, 2013
Crutchfield Customer Review (What's this?)
 
Being an owner of Focal home speakers, and a previous owner of Focal mobile speakers, this was an easy purchase for me to make. Well worth the money. No disappointments with the purchase of these speakers.
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Add accessories for the Focal Polyglass 27 V2

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

T-Spec 16-gauge Speaker Wire Black/white jacket — priced per foot
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T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
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Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
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Dynamat 19100 License Frame Kit
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Dynamat Xtreme Wedge Pack 1 sheet, 4 square feet
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Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612)
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Dynamat Xtreme Trunk Kit 5 sheets, 20 square feet
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Dynamat Dynaliner One 54" x 32" sheet (1/8" thick)
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Metra Box Carpet Carpet roll (54" x 5 yards) — available in 3 colors (Black)
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Polyester Fiber Stuffing Make your subwoofer think it's in a bigger box (1-pound pack)
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Metra Speaker Terminal Round terminal cup with binding post connectors (for do-it-yourself box builders)
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Metra Speaker Terminal Round terminal cup with spring clip connectors (for do-it-yourself box builders)
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Metra Speaker Terminal Square terminal cup with binding post connectors (for do-it-yourself box builders)
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2 people say
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Metra Speaker Terminal Square terminal cup with spring clip connectors (for do-it-yourself box builders)
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For a more in-depth review and enhanced detailed information on the Focal Polyglass 27 V2, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_09127V2/Focal-Polyglass-27-V2.html ).