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Focal RSB-250 Auditor Series 10" dual 4-ohm voice coil subwoofer

Item # 091RSB250

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

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

Item # 091RSB250

Ships free today

In stock
$179.99 each

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About the Focal RSB-250

Bob Bihlmayer

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-250 10" 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-250 10" 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-250 features a polypropylene cone with a butyl rubber surround that's made to handle up to 250 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.

Subwoofer Wiring Diagrams

To see sample wiring diagrams for all common subwoofer/amplifier combinations, check out this informative article.

READ LESS

Product highlights:

  • 10" dual 4-ohm voice coil subwoofer
  • polypropylene cone with butyl rubber surround
  • 5-1/2" magnet
  • power handling: 250 watts RMS (500 watts peak)
  • frequency response: 35-500 Hz
  • sensitivity: 88 dB
  • top-mount depth: 4-5/8"
  • sealed box volume: 0.7 cu. ft.
  • ported box volume: 1 cu.ft.
  • grille not included
  • warranty: 1 year
  • MFR # RSB-250

What's in the box:

  • One 10" 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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More details on the Focal RSB-250

Pat M.

Product Research

Features

Materials: The FOCAL Auditor RSB-250 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 20 liters (0.71 cubic feet).

Ported Box Volume: FOCAL recommends a ported enclosure with a volume of 25 liters (0.88 cubic feet) using a single port tube (port size not given).

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