Eminence Alpha-15A 15" Guitar/PA Speaker

PA SKU # EMN ALPHA15A MFR # ALPHA-15A UPC # 876358000050
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Only 4 Left! — In Stock & Ready to Ship Order now! Limited quantity in stock! Most orders placed before 3pm MST ship same day (except weekends and holidays).
  • Product Highlights
  • 15" (381mm) Bass Driver
  • 200W @ 8 Ohms
  • Intended for Cabinet Install
  • 25oz Magnet
  • 46Hz - 3.5kHz Frequency Response

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!
  • Kapton coil former
  • Polyamide-imide coated copper voice coil
  • Ferrite magnet
  • Vented and extended pole piece
  • Pressed steel basket
  • Paper cone
  • Cloth accordian surround
  • 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
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