The Alpha 5 offers unmistakable performance with an emphasis on value. Rated at 250 watts program power, this 5" midbass features a water-resistant cone and dust cap, making it an excellent choice for line array or column array applications.
| SPECIFICATION | |
| Nominal Basket Diameter | 5", 127 mm |
| Nominal Impedance* | 8 ? |
| Power Rating* | |
| Program Power | 250 W |
| Watts | 125 W |
| Resonance | 87 Hz |
| Usable Frequency Range | 87 Hz - 3.5 kHz |
| Sensitivity* | 89.4 dB |
| Magnet Weight | 20 oz. |
| Gap Height | 0.23", 5.8 mm |
| Voice Coil Diameter | 1.5", 38 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 87 Hz |
| DC Resistance (Re) | 5 ? |
| Coil Inductance (Le) | 0.29m H |
| Mechanical Q (Qms) | 11.81 |
| Electromagnetic Q (Qes) | 0.56 |
| Total Q (Qts) | 0.54 |
| Compliance Equivalent Volume (Vas) | 6.14 liters / 0.22 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 60.8 cc |
| Mechanical Compliance of Suspension (Cms) | 0.42 mm/N |
| BL Product (BL) | 6.22 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 8 grams |
| Efficiency Bandwidth Product (EBP) | 155 |
| Maximum Linear Excursion (Xmax) | 5.92 mm |
| Surface Area of Cone (Sd) | 102.6 cm2 |
| Maximum Mechanical Limit (Xlim) | 6.4 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | Acceptable |
| Vented | Acceptable |
| Driver Volume Displaced | 1.091 cu.ft. / 30.9 liters |
| Overall Diameter | 5.87", 149.1 mm |
| Baffle Hole Diameter | 4.8", 121.9 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.2", 5mm |
| Mounting Holes B.C.D. | 5.39", 136.9mm |
| Depth | 2.91", 73.9 mm |
| Net Weight | 3.1 lbs, 1.41 kg |
| Shipping Weight | 3.5 lbs, 1.59 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 | Water resistant pulp |
| Cone Edge Composition | Cloth cone edge |
| Dust Cap Composition | Water resistant paper |
