Eminence Beta 12CX 8 Ohm 12-Inch 250W Professional Audio Woofer Speaker - Coaxial Ready for Studio Monitors, PA Systems & Live Performances
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Description
Recommended for professional audio as a mid-bass in either vented, or sealed satellite or floor monitor enclosures. Also works nicely in vented two-way enclosures used for small coverage areas.
| Specification | |
| Nominal Basket Diameter | 12", 305 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | 500 W |
| Watts | 250 W |
| Resonance | 47 Hz |
| Usable Frequency Range | 57 Hz - 4.6 kHz |
| Sensitivity* | 97.3 dB |
| Magnet Weight | 38 oz. |
| Gap Height | 0.31", 7.9 mm |
| Voice Coil Diameter | 2", 51 mm |
| Thiele & Small Parameters | |
| Resonant Frequency (fs) | 47 Hz |
| DC Resistance (Re) | 5.42 Ω |
| Coil Inductance (Le) | 0.64m H |
| Mechanical Q (Qms) | 5.64 |
| Electromagnetic Q (Qes) | 0.52 |
| Total Q (Qts) | 0.48 |
| Compliance Equivalent Volume (Vas) | 120.94 liters / 4.27 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 188.6 cc |
| Mechanical Compliance of Suspension (Cms) | 0.3 mm/N |
| BL Product (BL) | 10.79 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 38 grams |
| Efficiency Bandwidth Product (EBP) | 90 |
| Maximum Linear Excursion (Xmax) | 3.5 mm |
| Surface Area of Cone (Sd) | 538.9 cm2 |
| Maximum Mechanical Limit (Xlim) | 10.4 mm |
| Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | 26.9-70.79 liters / 0.95-2.5 cu.ft. |
| Vented | 32.85-158.58 liters / 1.16-5.6 cu.ft. |
| Driver Volume Displaced | 0.071 cu.ft. / 2 liters |
| Overall Diameter | 12.03", 305.6 mm |
| Baffle Hole Diameter | 11.07", 281.2 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.25", 6.4mm |
| Mounting Holes B.C.D. | 11.59", 294.4mm |
| Depth | 4.47", 113.5 mm |
| Net Weight | 7.8 lbs, 3.54 kg |
| Shipping Weight | 10 lbs, 4.54 kgs |
| Materials of Construction | |
| Coil Construction | Copper voice coil |
| Coil Former | Kapton former |
| Magnet Composition | Ferrite magnet |
| Core Details | Tapered Coax |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Screened cloth dust cap |
