About the Focal RSB-250
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.
- 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
- top-mount depth: 4-5/8"
- sealed box volume: 0.7 cu. ft.
- ported box volume: 1 cu.ft.
- grille not included
- sensitivity: 88 dB
- warranty: 1 year
- Our 60-day money-back guarantee
- 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
Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.
See the difference between "Open Box" and "Scratch & Dent" Outlet items
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More details on the Focal RSB-250
Features & specs
|Impedance||2 ohms or 8 ohms|
|Surround Material||Butyl Rubber|
|Ideal Sealed Box Volume (cubic feet)||0.71|
|Ideal Ported Box Volume (cubic feet)||0.88|
|Port diameter (inches)||N/A|
|Port length (inches)||N/A|
|Dual Voice Coil||Yes|
88 dB at 2.83 volts |
|Frequency Response||35 - 500 Hz|
|Max RMS Power Handling||250|
|Peak Power Handling (Watts)||500|
|Top Mount Depth (inches)||4 3/8|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||9 3/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
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).
The Focal RSB-250 replaces these items