Eminence Delta 12A 12-Inch 400W 8 Ohm Professional Audio Woofer Speaker for Live Sound, PA Systems & Bass Guitar Cabinets
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Description
Recommended for professional audio as a mid-bass or woofer (with high-pass filter) in vented enclosures.
| Specification | |
| Nominal Basket Diameter | 12", 305 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | 800 W |
| Watts | 400 W |
| Resonance | 55 Hz |
| Usable Frequency Range | 54 Hz - 5 kHz |
| Sensitivity* | 98.3 dB |
| Magnet Weight | 56 oz. |
| Gap Height | 0.37", 9.5 mm |
| Voice Coil Diameter | 2.5", 64 mm |
| Thiele & Small Parameters | |
| Resonant Frequency (fs) | 55 Hz |
| DC Resistance (Re) | 6.3 Ω |
| Coil Inductance (Le) | 0.74m H |
| Mechanical Q (Qms) | 5.27 |
| Electromagnetic Q (Qes) | 0.46 |
| Total Q (Qts) | 0.43 |
| Compliance Equivalent Volume (Vas) | 81.3 liters / 2.87 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 125 cc |
| Mechanical Compliance of Suspension (Cms) | 0.21 mm/N |
| BL Product (BL) | 13.5 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 39 grams |
| Efficiency Bandwidth Product (EBP) | 120 |
| Maximum Linear Excursion (Xmax) | 2.4 mm |
| Surface Area of Cone (Sd) | 519.5 cm2 |
| Maximum Mechanical Limit (Xlim) | 9.9 mm |
| Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | N/a |
| Vented | 25.5-85 liters / 0.9-3 cu.ft. |
| Driver Volume Displaced | 0.079 cu.ft. / 2.25 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 | 5.35", 135.9 mm |
| Net Weight | 11.4 lbs, 5.17 kg |
| Shipping Weight | 13.5 lbs, 6.12 kgs |
| Materials of Construction | |
| Coil Construction | Aluminum voice coil |
| Coil Former | Polyimide former |
| Magnet Composition | Ferrite magnet |
| Core Details | Vented core |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Solid composition felt dust cap |
