Eminence ALPHA15A 15-In Rawframe Speaker
Eminence ALPHA15A 15-In Rawframe Speaker
Recommended for professional audio and bass guitar applications as a woofer in a vented or sealed enclosure.
Specifications:
- Nominal Basket Diameter: 15″, 381 mm
- Nominal Impedance*: 8 ?
- Power Rating*:
- Program Power: 400 W
- Watts: 200 W
- Resonance: 41 Hz
- Usable Frequency Range: 46 Hz – 3.5 kHz
- Sensitivity*: 97 dB
- Magnet Weight: 25 oz.
- Gap Height: 0.25″, 6.4 mm
- Voice Coil Diameter: 1.5″, 38 mm
- Resonant Frequency (fs): 41 Hz
- DC Resistance (Re): 5.88 ?
- Coil Inductance (Le): 0.84m H
- Mechanical Q (Qms): 7.23
- Electromagnetic Q (Qes): 1.53
- Total Q (Qts): 1.26
- Compliance Equivalent Volume (Vas): 260 liters / 9.18 cu.ft.
- Peak Diaphragm Displacement Volume (Vd): 325 cc
- Mechanical Compliance of Suspension (Cms): 0.25 mm/N
- BL Product (BL): 7.7 T-M
- Diaphragm Mass Inc. Airload (MMs): 59 grams
- Efficiency Bandwidth Product (EBP): 27
- Maximum Linear Excursion (Xmax): 3.8 mm
- Surface Area of Cone (Sd): 856.3 cm2
- Maximum Mechanical Limit (Xlim): 8.4 mm
- Recommended Enclosure Volume:
- Sealed: 71-85 liters / 2.5-3 cu.ft.
- Vented: 106-177 liters / 3.75-6.25 cu.ft.
- Driver Volume Displaced: 0.113 cu.ft. / 3.21 liters
- Overall Diameter: 15.15″, 384.8 mm
- Baffle Hole Diameter: 13.87″, 352.3 mm
- Front Sealing Gasket: Yes
- Rear Sealing Gasket: Yes
- Mounting Holes Diameter: 0.25″, 6.4mm
- Mounting Holes B.C.D.: 14.56″, 369.8mm
- Depth: 5.83″, 148.1 mm
- Net Weight: 6.7 lbs, 3.04 kg
- Shipping Weight: 8.8 lbs, 3.99 kgs
- Coil Construction: Copper voice coil
- Coil Former: Polyimide former
- Magnet Composition: Ferrite magnet
- Core Details: Vented and extended core
- Basket Materials: Pressed steel basket
- Cone Composition: Paper cone
- Cone Edge Composition: Cloth cone edge
- Dust Cap Composition: Solid composition paper dust cap
