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JBL MS Series MS-12SD4
12" subwoofer with dual 4-ohm voice coils
Item # 109MS12SD4 | MFR # MS-12SD4
This item is no longer available.
Our take on the JBL MS Series MS-12SD4by Crutchfield's Buck Pomerantz
Looking for loud bass? JBL built this MS Series MS-12SD4 12" subwoofer extra tough, with features like a vented cast aluminum frame and stitched fabric surround that help this sub hit hard and last a long time. This sub works equally well in both sealed and ported enclosures, so you can achieve virtually any bass tone you want, from punishing to mellow.
Versatile and powerful
The dual voice coil (DVC) design gives you more flexibility in matching your sub system's total impedance to your amplifier, in order to get maximum efficiency and full power. And speaking of power, this sub takes up to 900 watts RMS, for performance that'll let you really feel your music's pounding beat.
- 12" subwoofer with dual 4-ohm voice coils
- polypropylene cone with stitched tri-laminate fabric surround
- vented cast aluminum frame
- power range: 50-900 watts RMS
- peak power handling: 1800 watts
- frequency response: 30-400 Hz
- sensitivity: 87.0 dB
- top-mount depth: 5-5/8"
- sealed box volume: 0.95 cubic feet
- ported box volume: 1.7 cubic feet
- warranty: 1 year
- Our 60-day money-back guarantee
What's in the Box:
- 12" Dual 4 ohm voice coil subwoofer
- Trim ring
- Specification sheet
- Warranty information
Features and Specs
|Impedance||2 ohms or 8 ohms|
|Cone Material||Laminated Polypropylene|
|Ideal Sealed Box Volume (cubic feet)||0.95|
|Ideal Ported Box Volume (cubic feet)||1.7|
|Port diameter (inches)||3.94|
|Port length (inches)||8.66|
|Dual Voice Coil||Yes|
87 dB at 1 watt
|Frequency Response||30 - 400 Hz|
|RMS Power Range (Watts)||50-900|
|Peak Power Handling (Watts)||1800|
|Top Mount Depth (inches)||5 5/8|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||10 15/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Vented Cast Aluminum Basket: The vented cast aluminum basket effectively dissipates heat to minimize distortion due to power compression.
Dual 4-ohm Voice Coils: For increased system flexibility, the woofer has two 4-ohm voice coils. When the voice coils are wired in parallel the woofer presents a 2-ohm load; when wired in series, the woofer presents an 8-ohm load.
Sealed Box Volume: JBL recommends a 0.95 cubic foot sealed enclosure.
Ported Box Volume: JBL recommends a 1.7 cubic foot ported enclosure with one port, approximately 4" diameter x 8-5/8" long.
Power Handling: The woofer has two 4-ohm voice coils; each voice coil can handle 450 watts RMS (900 watts RMS total)/900 watts peak (1800 watts peak total).
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