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Focal Sub 12 Dual 12" dual 4-ohm voice coil subwoofer

Item # 091SUB12D

Focal has long been renowned for the quality of their speakers, and our customers agree — they consistently...

Focal has long been renowned for the quality of their speakers, and our customers agree — they consistently...

Item # 091SUB12D

Every order includes

  • Free lifetime tech support
  • 60-day price-drop protection
  • 60-day returns
Low stock
$319.99 each

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About the Focal Sub 12 Dual

Bob Bihlmayer

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

Pat M.

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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Customer Q&A

1 question already asked

Q
Any info on max rms when wired at 2ohm vs 4ohm?
jackson  Jul 17, 2024
1 answer
A
The Focal Sub 12 Dual 4-ohm voice coil subwoofer can be wired to either a 2-ohm or 8-ohm resistance, Jackson. When using a single subwoofer, the 2-ohm configuration is advised. Maximum RMS is 300-watts in either wiring configuration.
bo  Jul 17, 2024 (Staff)

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Focal SUB 12 DUAL
$319.99 each
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