Key Features
- 15" (381mm) Bass Driver
- 200W @ 8 Ohms
- Intended for Cabinet Install
- 25oz Magnet
- 46Hz - 3.5kHz Frequency Response
Description
15" Woofer, 8 Ohm, 200 Watt
The Eminence Alpha-15A 15" speaker is ideal for two-way sound reinforcement systems, keyboard, and guitar combos. For all bass applications. Made in the USA. 7-year manufacturer's warranty!
Features:
- Kapton coil former
- Polyamide-imide coated copper voice coil
- Ferrite magnet
- Vented and extended pole piece
- Pressed steel basket
- Paper cone
- Cloth accordian surround
Specifications:
- SPECIFICATION
- Nominal Basket Diameter: 15", 381mm
- Nominal Impedance*: 8 ohms
- Power Rating**
- Watts: 200W
- Music Program: 400W
- Resonance: 41Hz
- Usable Frequency Range: 46Hz - 3.5kHz
- Sensitivity***: 97dB
- Magnet Weight: 25 oz.
- Gap Height: 0.25", 6.35mm
- Voice Coil Diameter: 1.5", 38.1mm
- THIELE & SMALL PARAMETERS
- Resonant Frequency (fs): 41Hz
- DC Resistance (Re): 5.88
- Coil Inductance (Le): 0.84mH
- Mechanical Q (Qms): 7.23
- Electromagnetic Q (Qes): 1.53
- Total Q (Qts): 1.26
- Compliance Equivalent Volume (Vas): 260 liters / 9.2 cu.ft.
- Peak Diaphragm Displacement Volume (Vd): 325cc
- Mechanical Compliance of Suspension (Cms): 0.25mm/N
- BL Product (BL): 7.7 T-M
- Diaphragm Mass Inc. Airload (MMs): 59 grams
- Efficiency Bandwidth Product (EBP): 27
- Maximum Linear Excursion (Xmax): 3.8mm
- Surface Area of Cone (Sd): 856.3 cm2
- Maximum Mechanical Limit (Xlim): 8.4mm
- MOUNTING INFORMATION
- 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: 195.9 cu.in. / 3.21 liters
- Overall Diameter: 15.15", 384.8mm
- Baffle Hole Diameter: 13.87", 352.3mm
- Front Sealing Gasket: Fitted as standard
- Rear Sealing Gasket: Fitted as standard
- Mounting Holes Diameter: 0.25", 6.4mm
- Mounting Holes B.C.D.: 14.56", 369.9mm
- Depth: 5.83", 148mm
- Net Weight: 6.7 lbs, 3 kg
- Shipping Weight: 8.8 lbs, 4 kgs
- MATERIALS OF CONSTRUCTION
- 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