Eminence ALPHA-6CBMRA: 6.5 Inch Closed Back Midrange
Recommended for pro audio, car audio, and bass guitar midrange applications. Sealed basket affords this speaker enclosure independence.
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Specification | |
Nominal Basket Diameter | 6″, 165 mm |
Nominal Impedance* | 8 Ω |
Power Rating* | |
Program Power | 200 W |
Watts | 100 W |
Resonance | 407 Hz |
Usable Frequency Range | 400 Hz – 5 kHz |
Sensitivity* | 97.8 dB |
Magnet Weight | 16 oz. |
Gap Height | 0.25″, 6.4 mm |
Voice Coil Diameter | 1.5″, 38 mm |
Thiele & Small Parameters | |
Resonant Frequency (fs) | 407 Hz |
DC Resistance (Re) | 5.26 Ω |
Coil Inductance (Le) | 0.38m H |
Mechanical Q (Qms) | 6.04 |
Electromagnetic Q (Qes) | 1.74 |
Total Q (Qts) | 1.35 |
Compliance Equivalent Volume (Vas) | 0.45 liters / 0.02 cu.ft. |
Peak Diaphragm Displacement Volume (Vd) | 19 cc |
Mechanical Compliance of Suspension (Cms) | 0.02 mm/N |
BL Product (BL) | 7.86 T-M |
Diaphragm Mass Inc. Airload (MMs) | 8 grams |
Efficiency Bandwidth Product (EBP) | 234 |
Maximum Linear Excursion (Xmax) | 1.5 mm |
Surface Area of Cone (Sd) | 126.7 cm2 |
Maximum Mechanical Limit (Xlim) | 3 mm |
Mounting Information | |
Recommended Enclosure Volume | |
Sealed | N/a |
Vented | – liters / – cu.ft. |
Driver Volume Displaced | 0.014 cu.ft. / 0.4 liters |
Overall Diameter | 6.59″, 167.4 mm |
Baffle Hole Diameter | 5.69″, 144.5 mm |
Front Sealing Gasket | Yes |
Rear Sealing Gasket | Yes |
Mounting Holes Diameter | 0.23″, 5.8mm |
Mounting Holes B.C.D. | 6.06″, 153.9mm |
Depth | 2.2″, 55.9 mm |
Net Weight | 3.7 lbs, 1.68 kg |
Shipping Weight | 4.4 lbs, 2 kgs |
Materials of Construction | |
Coil Construction | Copper voice coil |
Coil Former | Polyimide former |
Magnet Composition | Ferrite magnet |
Core Details | Non-vented core |
Basket Materials | Pressed steel basket |
Cone Composition | Paper cone |
Cone Edge Composition | Cloth cone edge |
Dust Cap Composition | Solid composition paper dust cap |