About the Focal Sub 12 Dual

Product highlights:
- polypropylene cone with butyl rubber surround
- steel basket
- 5.715" ferrite magnet
- power handling: 300 watts RMS (600 watts peak)
- sensitivity: 88 dB
- top-mount depth: 5.3"
- mounting height: 0.78"
- sealed box volume: 0.53-1.27 cubic feet
- ported box volume: 1.06-1.69 cubic feet
- grille not included
- warranty: 1 year
- MFR # SUB12DUAL
- Item # 091SUB12D
What's in the box:
Focal Sub 12 Dual owner's manual
If you need assistance accessing this owner's manual, please give us a call.- One 12" Dual voice coil subwoofer
- Eight 1-3/8" Pan head screws
- Quick start manual
- Specifications printed on box
More details on the Focal Sub 12 Dual

Features & specs
Features and Specs | ||
---|---|---|
Size | 12-inch | |
Impedance (Ohms) | 2, 8 | |
Cone Material | Polypropylene | |
Surround Material | Butyl Rubber | |
Basket Material | Steel | |
Grille | None included | |
Free-Air | No | |
Dual Voice Coil | Yes | |
Sensitivity |
88 dB at 2.83 volts | |
Frequency Response | --- | |
Max RMS Power Handling | 300 | |
Peak Power Handling (Watts) | 600 | |
Top Mount Depth (inches) | 5 5/16 | |
Bottom Mount Depth (inches) | N/A | |
Cutout Diameter or Length (inches) | 11 | |
Frame Width | 12.76 | |
Frame Length | 12.76 | |
Vas (liters) | 81 | |
Fs (Hz) | 24 | |
Qts | 0.573 | |
Xmax (millimeters) | 0 | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Box Requirements | ||
Ideal Sealed Box Volume (cubic feet) | N/A | |
Minimum Sealed Box Volume (cubic feet) | 0.53 | |
Maximum Sealed Box Volume (cubic feet) | 1.27 | |
Ideal Ported Box Volume (cubic feet) | N/A | |
Minimum Ported Box Volume (cubic feet) | 1.06 | |
Maximum Ported Box Volume (cubic feet) | 1.69 | |
Port diameter (inches) | 3.15 | |
Port length (inches) | 17.72 |
Product Research
Features
Materials: Focal uses a polypropylene cone and butyl rubber surround to withstand the harsh automotive environment.
Dual 4-ohm Voice Coils: The dual 4-ohm voice coils offer wiring flexibility; when wired in parallel the woofer presents a 2-ohm load, when wired in series the woofer presents an 8-ohm load.
Spring-Posts: The sub has spring-post terminals for easy connection of single banana plugs, pin connectors, or bare wire up to 10 gauge.
Sealed Enclosures: Sealed enclosures provide the most control over a woofer and provide accurate sonic reproduction, making them suitable for all types of music. Focal lists four sealed enclosure examples in the manual:
- 15 liters/0.53 ft³, resulting in a -3 dB point of 39 Hz
- 20 liters/0.71 ft³, resulting in a -3 dB point of 35 Hz
- 25 liters/0.88 ft³, resulting in a -3 dB point of 32 Hz
- 30 liters/1.06 ft³, resulting in a -3 dB point of 30 Hz
Ported Enclosures: Ported (or vented) enclosures typically provide better overall efficiency than sealed, maximizing bass output for a given amplifier. Focal lists three ported enclosure examples in the manual:
- 30 liters/1.06 ft³ using a 7cm/2.75" diameter x 35cm/13.75" long port, resulting in a tuning frequency of 30 Hz
- 35 liters/1.24 ft³ using an 8cm/3.15" diameter x 45cm/17.72" long port, resulting in a tuning frequency of 28 Hz
- 40 liters/1.41 ft³ using a 8cm/3.15" diameter x 45cm/17.72" long port, resulting in a tuning frequency of 25 Hz
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