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Eminence Lab 12C High Power 12" Subwoofer Speaker Driver 4 Ohm

Brand:|Model: Lab 12C|Part # 290-668

Eminence's LAB 12C subwoofer driver builds upon the premise of the original LAB 12 subwoofer, lowering the impedance to 4 ohms and raising the power handling. It is recommended for vented, sealed, and horn-loaded professional audio enclosures. Also great as an automotive sub.
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Part # 290-668
  • Double stacked 80 oz. ferrite magnets
  • Copper voice coil on Polyimide former
  • 12-spoke die-cast aluminum basket
  • Kevlar® reinforced paper cone with foam cone edge
  • Vented and extended pole piece

Product Details

Eminence Lab 12C High Power 12" Subwoofer Speaker Driver 4 Ohm

The LAB 12C, from Eminence, is a 4-ohm take on the original LAB 12 subwoofer (for more information on the LAB 12, visit the History of the LABhorn thread at ProSoundWeb). The 12C features the same long-throw construction with a heavy-duty 12-spoke die-cast aluminum frame and Kevlar® reinforced paper cone. A lower impedance voice coil is designed to handle 500W RMS, 1,000W program power, and extract even more power from your amplifier, while nickel-plated, spring-loaded speaker terminals offer quick connection. Proudly made in the U.S.A.

Eminence's LAB 12C is designed to perform optimally in a small, sealed 1 cubic foot enclosure, or a 1.25 cubic foot vented enclosure (using a 4" diameter port that is 14.75" long for a 38 Hz tuning frequency) for automotive use. When used in either application, it is recommended to use a steep 35 Hz high-pass filter.

For home theater use, Eminence recommends a 4.5 cubic foot ported enclosure using a 4" diameter port that is 14.5" long that tunes the cabinet to 28 Hz and yields an F3 of 29 Hz. When used in this manner, a steep 25 Hz high pass filter is recommended.

For even more enclosure recommendations, see the Related Items section.

Product Specifications
  • Nominal Diameter12"
  • Power Handling (RMS)500 Watts
  • Power Handling (max)1000 Watts
  • Impedance4 ohms
  • Frequency Response25 to 120 Hz
  • Sensitivity88.9 dB 1W/1m
  • Voice Coil Diameter2.5"
  • Magnet Weight160 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)23 Hz
  • DC Resistance (Re)3.11 ohms
  • Voice Coil Inductance (Le)1.09 mH
  • Mechanical Q (Qms)11.70
  • Electromagnetic Q (Qes)0.34
  • Total Q (Qts)0.33
  • Compliance Equivalent Volume (Vas)4.53 ft.³
  • Mechanical Compliance of Suspension (Cms)0.36 mm/N
  • BL Product (BL)13.36 Tm
  • Diaphragm Mass Inc. Airload (Mms)136g
  • Maximum Linear Excursion (Xmax)13 mm
  • Surface Area of Cone (Sd)506.7 cm²
Materials of Construction
  • Cone MaterialPaper / Kevlar
  • Surround MaterialFoam
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter12.32"
  • Baffle Cutout Diameter10.98"
  • Depth6.44"
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.9 ft.³
  • Sealed F355 Hz
  • Vented Volume1.89 ft.³
  • Vented F333 Hz
Eminence Lab 12C High Power 12" Subwoofer Speaker Driver 4 Ohm
  • BrandEminence Speaker
  • ModelLab 12C
  • Part Number290-668
  • UPC876358002108
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight23.25 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Eminence Lab 12C High Power 12" Subwoofer Speaker Driver 4 Ohm
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