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Focal RSB-300

Auditor Series 12" dual 4-ohm voice coil subwoofer

Item # 091RSB300

Focal has built a reputation for building great speakers for home, car, or recording studio, and our customers...

Read more from Crutchfield writer, Bob B.

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$179.99 each

About the Focal RSB-300

Affordable quality

Focal has built a reputation for building great speakers for home, car, or recording studio, and our customers definitely give their subs high marks. Their Auditor Series RSB-300 12" subwoofer delivers impressive bass, maintaining accuracy even when you're pushing your system hard. The sub's two voice coils allow you to wire it for 2- or 8-ohm impedance, giving you more flexibility when you expand your bass setup.

Affordable quality

Focal has built a reputation for building great speakers for home, car, or recording studio, and our customers definitely give their subs high marks. Their Auditor Series RSB-300 12" subwoofer delivers impressive bass, maintaining accuracy even when you're pushing your system hard. The sub's two voice coils allow you to wire it for 2- or 8-ohm impedance, giving you more flexibility when you expand your bass setup.

Built to take it

The RSB-300 features a polypropylene cone with a butyl rubber surround that's made to handle up to 300 watts RMS. Large vents in the sub's steel basket help dissipate the heat generated by extended bass sessions. This Focal fits into just about any kind of system, whether you prefer tight bass from a sealed box or fatter bass from a ported enclosure.

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.

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Product highlights:

  • 12" dual 4-ohm voice coil subwoofer
  • polypropylene cone with butyl rubber surround
  • 5-1/2" magnet
  • power handling: 300 watts RMS (600 watts peak)
  • frequency response: 25-1000 Hz
  • top-mount depth: 5-5/8"
  • sealed box volume: 1 cu.ft.
  • ported box volume: 1.5 cu. ft.
  • sensitivity: 90 dB
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # RSB-300
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What's in the box:

  • One 12" Dual 4-ohm voice coil woofer
  • Eight 1-3/8" Pan head screws
  • User manual (English/ French/ German/ Spanish/ Italian/ Portuguese/ Chinese/ Russian)
  • Specifications printed on box
  • Thank you note

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Features

Materials: The FOCAL Auditor RSB-300 features a polypropylene cone and butyl rubber surround to withstand the harsh automotive environment.

Dual 4Ω Voice Coils: The dual 4Ω voice coils offer wiring flexibility; when wired in parallel the woofer presents a 2Ω load, when wired in series the woofer presents an 8Ω load.

Binding Posts: The speaker terminals are threaded binding posts for easy connection of single banana plugs or bare wire up to 8 gauge.

Sealed Box Volume: FOCAL recommends a sealed enclosure with a volume of 25 liters (0.88 cubic feet).

Ported Box Volume: FOCAL recommends a ported enclosure with a volume of 30 liters (1.06 cubic feet) using a single port tube (port size not given).

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