Description
Vintage American ceramic magnet tone approved by legendary amp builder George Alessandro. Well-balanced from top to bottom with tight, full lows, warm mids, and warm, but open highs.
Manufacturer Spec Sheet
| Specification | |
| Nominal Basket Diameter | 12", 305 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | N/A |
| Watts | 40 W |
| Resonance | 88 Hz |
| Usable Frequency Range | 80 Hz - 5.3 kHz |
| Sensitivity* | 100.5 dB |
| Magnet Weight | 38 oz. |
| Gap Height | 0.31", 8 mm |
| Voice Coil Diameter | 1.75", 44 mm |
| Thiele & Small Parameters | |
| Resonant Frequency (fs) | 88 Hz |
| DC Resistance (Re) | 7.63 Ω |
| Coil Inductance (Le) | 0.67m H |
| Mechanical Q (Qms) | 16.82 |
| Electromagnetic Q (Qes) | 0.6 |
| Total Q (Qts) | 0.58 |
| Compliance Equivalent Volume (Vas) | 44.96 liters / 1.59 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 83.8 cc |
| Mechanical Compliance of Suspension (Cms) | 0.12 mm/N |
| BL Product (BL) | 13.8 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 27 grams |
| Efficiency Bandwidth Product (EBP) | 146 |
| Maximum Linear Excursion (Xmax) | 1.23 mm |
| Surface Area of Cone (Sd) | 519.5 cm2 |
| Maximum Mechanical Limit (Xlim) | N/A |
| Mounting Information | |
| Recommended Enclosure Volume | |
| Sealed | Acceptable |
| Vented | Acceptable |
| Driver Volume Displaced | 0.071 cu.ft. / 2 liters |
| Overall Diameter | 12.17", 309.1 mm |
| Baffle Hole Diameter | 11.13", 282.7 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | N/A |
| Mounting Holes Diameter | 0.24", 6.1mm |
| Mounting Holes B.C.D. | 11.75", 298.5mm |
| Depth | 5.13", 130.2 mm |
| Net Weight | 7.5 lbs, 3.4 kg |
| Shipping Weight | 8.4 lbs, 3.81 kgs |
| Materials of Construction | |
| Coil Construction | Copper voice coil |
| Coil Former | Paper former |
| Magnet Composition | Ferrite magnet |
| Core Details | Non-vented core |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Paper cone edge |
| Dust Cap Composition | Solid composition felt dust cap |