Focal's Polyglass subs pump out righteous low end that brings out the power in your music. Focal crafts these subs with tremendous care to ensure flawless output and long life.

The 33 V1 13" subwoofer can take up to 400 watts RMS, and it's designed for use in a ported enclosure. Its advanced Polyglass cone bonds a layer of hollow glass microbeads over a layer of cellulose to create an incredibly strong, responsive speaker. The large butyl rubber surround keeps the cone moving smoothly, while the engraved aluminum dust cap provides protection with a classic look.

Focal anchors this sub with a rigid, non-magnetic zinc alloy basket that won't color your bass. Advanced cooling around the voice coil keeps this sub running cool when your music heats up. Focal's pursuit of excellence makes this Polyglass subwoofer a great pick for low-frequency reinforcement in your vehicle.

Priced per speaker

Product Highlights:

  • 13" 4-ohm subwoofer
  • Polyglass cone with butyl rubber surround
  • zamak (zinc alloy) basket
  • power range: 100-400 watts RMS
  • peak power handling: 800 watts
  • frequency response: 30-500 Hz
  • sensitivity: 88 dB
  • top-mount depth: 6-3/16"
  • ported box volume: 1.06-1.77 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

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.

Hands-on research

What's in the box?

Download owner's manual

  • 13" SVC 4-ohm woofer (rubber magnet boot installed)
  • 8 Hex-head mounting screws
  • Self-adhesive foam gasket
  • User Manual (Eng/Fre)
  • Serial number card
  • FOCAL logo sticker
  • "Remove Before Using" notes (attached to speaker terminals of woofer)

Product Research

Features
Enclosure Compatibility

Features

Polyglass Cone: The FOCAL Polyglass 33V1 features an 13" polyglass cone woofer for a wide, dynamic frequency response of 30-500Hz that offers great bass and mid-bass 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.

Aluminum Dust-Cap: The Polyglass 33V1 features an aluminum dust-cap with an engraved FOCAL logo for a more esthetic look.

NBR Surround: The FOCAL Polyglass 33V1 features a NBR (Nitrile Butyl Rubber) surround for long excursion, deep bass, and added durability to promote long life.

Aluminum Voice-Coil Former: The Polyglass 33V1 woofer features a 4 layer, 2.5" diameter, 4-ohm, aluminum voice-coil former for higher power handling capabilities up to 400 watt (RMS) and 800 watt (Peak).

Louvered Cooling System: The Polyglass 33V1's Louvered Cooling System is self-regulated ventilation system which increases air cooling, prevents heat build-up, and provides optimized reliability with performance consistency.

Ferrite Magnet: The Polyglass 33V1 woofer features a156mm (6.0"), 25mm (1") thick ferrite magnet for higher sensitivity up to 92dB (2.83V/1m).

Die Cast Chassis: The FOCAL Polyglass 33V1 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 13" woofer is equipped with a pair of nickel-plated spring-post speaker terminals for easy connection up to 10AWG wire.

Foam Gasket: The Polyglass 33V1 comes supplied with a self-adhesive foam gasket mounting-ring for better chassis damping and to prevent air leakage.

Rubber Magnet Boot: The Polyglass 33V1  features a rubber magnet boot to protect the woofer's magnet from shocks and corrosion. The rubber boot is removable.

Enclosure Compatibility

Recommended Ported Box Volume: The FOCAL Polyglass 33V1 is designed to be installed in a ported box with a volume between 1.41 cu/ft to 1.77 cu/ft. FOCAL recommends a vented enclosure made out of 3/4" MDF with an internal volume of 1.41 cu/ft.

Vented 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: 17.3125"
Height: 17.3125"
Depth1: 17.6875"
Depth2: 10.25"
Port 2.75" diameter x 9.0625" long 2.75" diameter x 9.0625" long 2.75" diameter x 9.0625" long
Bass Type fast and tight bass Punch and dynamic bass Deep and articulate bass

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.

Focal Polyglass 33 V1 Reviews

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Focal is Top Notch in SQ!

Written By Ruben, El Mirage, AZ on Tuesday, May 12, 2009

If you are reading this, You are on the right path! I have owned some of the best and Focal is in the top 5 as far as sound quality. I was looking for another set of the Infinity 12.1 perfects (discontinued) when I came across the Focal 33 V1 13" for half price, I bought two and hooked them up to my JL 1000/1 and it turned out to be one of the best combos I have ever owned. The sound quality is amazing! I put these in a sealed 2.6 (1.3 for each Sub) square foot box with no divider facing to the rear of the trunk in my '04 Impala.

Product reviews from the Crutchfield Labs

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

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.

What are the Labs?

Get everything you’ll need to enjoy your new Focal Polyglass 33 V1

It's critical to have good wire, and none is included with the sub.
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
These can be useful if you are building a custom box.
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

(13)

T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

(31)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(53)

Dynamat 19100

Dynamat 19100

License Frame Kit

Item #: 15419100

(15)

$14.99
Add to Cart
Dynamat Xtreme Wedge Pack

Dynamat Xtreme Wedge Pack

1 sheet, 4 square feet

Item #: 15410425

(7)

$39.99
Add to Cart
Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

Item #: 15410612

(17)

$69.99
Add to Cart
Dynamat Xtreme Trunk Kit

Dynamat Xtreme Trunk Kit

5 sheets, 20 square feet

Item #: 15419405

(14)

$169.99
Add to Cart
Dynamat Dynaliner

Dynamat Dynaliner

One 54" x 32" sheet (1/8" thick)

Item #: 15411101

(6)

$69.99
Add to Cart
Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCRB

(14)

Corner Protectors

Corner Protectors

Item #: 1251536

(5)

Metra Box Carpet

Metra Box Carpet

Carpet roll (54" x 5 yards) — available in 3 colors (Black)

Item #: 120TL3015

(24)

$39.99
Add to Cart
Polyester Fiber Stuffing

Polyester Fiber Stuffing

Make your subwoofer think it's in a bigger box (1-pound pack)

Item #: 027808

(36)

$12.99
Add to Cart
Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCRS

(6)

Rubber Feet

Rubber Feet

Item #: 125F1692

(4)

Springback Handle

Springback Handle

Item #: 125H1051K

(2)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCSB

(7)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCSS

(7)

Port Tube

Port Tube

3" diameter, 4-1/2" long

Item #: 125M1702

(2)