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