About the Focal P 20 FSE
Flax to the max
Flax to the max
If you've heard Focal speakers, then you know that their reputation for quality is well-deserved. Focal's designers never hesitate to think outside the box when it comes to speaker innovation. To create their Flax Evo Series speakers and subs, for example, they spent five years developing a super-lightweight, extra-rigid cone material made from a layer of flax fibers sandwiched between two layers of glass fibers. You get the warmth of natural fiber combined with the supreme accuracy of a more rigid cone material.
Small size, big sound
Built at Focal's workshop in France, the P 20 FSE 8" sub delivers performance beyond its size, using superior materials and construction to handle up to 200 watts RMS. At only 3" deep, its shallow-mount design allows it to fit in a compact sealed enclosure, so it's easier to fit in a smaller vehicle. If you're putting together a system, make sure to take a look at Focal's component speaker systems that feature the same "Flax Sandwich" cones.
Product highlights:
- 8" 4-ohm component subwoofer
- shallow-mount design
- glass fiber/flax/glass fiber laminate cone with rubber surround
- handles up to 200 watts RMS (400 watts peak)
- frequency response: 35-400 Hz
- sensitivity: 86 dB
- top-mount depth: 3"
- sealed box volume: 0.21-0.38 cubic feet
- grille not included
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # SUB P20FSE
What's in the box:
- One 8" Shallow mount single voice coil subwoofer
- Rubber trim ring/gasket (installed)
- Six 7/8" Screws
- User manual (English/ French/ German/ Italian/ Spanish/ Portuguese/ Dutch/ Polish/ Russian/ Chinese/ Korean/ Japanese)
- Specifications printed on the box
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More details on the Focal P 20 FSE

Features & specs
Size | 8 -inch | |
Impedance | 4 ohms | |
Cone Material | Flax/Glass | |
Surround Material | Rubber | |
Ideal Sealed Box Volume (cubic feet) | 0.28 | |
Ideal Ported Box Volume (cubic feet) | N/A | |
Port diameter (inches) | N/A | |
Port length (inches) | N/A | |
Free-Air | No | |
Dual Voice Coil | No | |
Sensitivity |
86 dB at 2.83 volts | |
Frequency Response | 35 - 400 Hz | |
Max RMS Power Handling | 200 | |
Peak Power Handling (Watts) | 400 | |
Top Mount Depth (inches) | 3 | |
Bottom Mount Depth (inches) | N/A | |
Cutout Diameter or Length (inches) | 7 3/16 | |
Vas (liters) | 9 | |
Fs (Hz) | 35 | |
Qts | 1.3 | |
Xmax (millimeters) | 11 | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year |
Product Research
Features
Cone: The woofer cone is a sandwich design, with a flax center between two glass layers. This combination of materials results in a neutral sound without coloration.
Surround: The rubber surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.
Spring-Posts: The spring-post speaker terminals offer easy connection of single banana plugs or bare wire up to 10 gauge.
Rubber Gasket: The gasket/mounting-ring ensures better chassis damping and prevents air leakage. The rubber gasket is removable.
Enclosure: Focal recommends a sealed enclosure volume of 0.28 ft³ (examples are given from 0.21 ft³ to 0.32 ft³). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable for all types of music.
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