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Alpine

Alpine R2-SB12V

Alpine R2-SB12V

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Halo Series 12" linkable ported subwoofer enclosure

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About the Alpine R2-SB12V

Twice the bass

Alpine's Halo Series subwoofer enclosures make it simple to add bass (and more bass) to your system. You'll get great bass response from a single box, and when you're ready to expand your system you can add a second enclosure and the optional linking kit to create a two-speaker system with double the impact. 

Laying it down

The R2-SB12V comes loaded with Alpine's updated R2-W12D4 subwoofer wired for 2-ohm impedance, for solid bass response at power levels up to 750 watts RMS. The ported enclosure is made of rugged 3/4" MDF with a stylish black carpet covering and is tuned to 35 Hz to maximize the lows.

Putting it together

Two R2-SB12V enclosures can be linked using Alpine's KTX-H12 linking kit (sold separately). Heavy-duty steel front and rear linking brackets connect the enclosures for a compact, sturdy dual-subwoofer solution. The silver linking brackets match the enclosure's trim for a neat, coordinated look.

Product highlights:

  • 12" ported subwoofer enclosure
  • loaded with Alpine's R2-W12D4 subwoofer
  • linkable to second R2-SB12V enclosure with linking kit (sold separately)
  • Kevlar-reinforced pulp cone
  • Santoprene rubber surround
  • power handling: 750 watts RMS (2250 watts peak)
  • frequency response: 24-200 Hz
  • sensitivity: 85 dB
  • 2-ohm impedance
  • dimensions: 17.13" W x 14.813" H x 15.563" D
  • warranty: 1 year
  • MFR # R2-SB12V
  • Item # 500R2SB12V
  • California customers: Please click here for your Proposition 65 WARNING.

What's in the box:

  • Ported enclosure loaded with one R2-W12D4 subwoofer driver
  • Warranty information
  • Product registration information
  • Safety notice

Features & specs

General
Woofer Size (inches) 12
Speakers Per Box 1
Woofer Material Kevlar-reinforced pulp
Enclosure Type Ported
Color Black w/silver trim
Pieces in System 1
Width (inches) 17-3/16
Height (inches) 14-7/8
Depth (inches) 15-5/8
Connector Type Binding post
Frequency Response 24-200 Hz
Power Handling (Watts RMS) 750
Power Handling (Watts Peak) 2250
Sensitivity 85 dB
Impedance 2 ohms
Parts Warranty 1 Year
Labor Warranty 1 Year

Features

Driver: The Alpine R2-SB12V loaded enclosure features a single R2-W12D4 12", dual 4-ohm voice coil subwoofer driver. The next generation R-Series driver features a Kevlar-reinforced pulp cone with a polypropylene/ceramic composite dust cap and a High-Amplitude Multi-Roll (H.A.M.R.) surround. The driver also features two large double-stacked strontium-ferrite magnets for increased motor strength and excursion. A custom-designed cast aluminum frame and a dual-flare pole vent optimize airflow for driver cooling. Both 4-ohm voice coils are wired in parallel for a single 2-ohm connection.

Power Handling: The R2-SB12V can handle 300-750W RMS (2250W peak).

Enclosure: The R2-SB12V's ported enclosure design has been optimized for use with the R2-W12D4 driver, and has been tuned to 35Hz for deep, powerful bass. It features a rigid, heavy-duty MDF construction that's been wrapped in attractive black carpet, with a smooth black finish and silver trim on the front face.

Enclosure Linking (Optional): The R2-SB12V's unique design allows it to be linked to an additional R2-SB12V (sold separately) using the optional KTX-H12 linking kit. This features an aluminum rear link-plate and an attractive, steel-reinforced ABS front linking bracket that securely locks the two enclosures together.

Subwoofer Grille (Optional): The Alpine R2-SB12V does not include a grille for the driver, but can be used with the optional Alpine KTE-12G.3 steel mesh grille (sold separately).

Terminals: A single rear-panel terminal cup houses a pair of binding posts for connection, accepting up to 12 ga. speaker wire. Both of the driver's voice coils are wired in parallel for a single 2-ohm load.

Specifications:

  • Driver: Single 12" (R2-W12D4)
  • Impedance: 2-Ohms (dual 4-ohm voice coils parallel-wired)
  • Power Handling: 300-750W RMS (2250W peak)
  • Enclosure: Ported
  • Frequency Response: 24-200Hz
  • Port Tuning: 35Hz
  • Dimensions: W = 17.13", H = 14.813", Depth = 15.563"

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