Eminence :: Eminence Loudspeaker Drivers :: Eminence 15 Inch :: Eminence ALPHA-15A
Eminence

Eminence Alpha 15 - 15" 200W 8 Ohm

SPL: 97.0 1W/1m Fs: 41 Hz Xmax: 3.8mm
Product Code: EMIALPHA15A Brand: Eminence Model: ALPHA-15A
Eminence Alpha 15 - 15 inch 200W 8 Ohm
£102.27
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Eminence Alpha 15 - 200W 15" Driver 8 ohm

The Eminence Alpha 15 is ideal for use as a woofer in lower power 2-way systems.

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/W@1m
  • 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) 260.0 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
  • Diaphram 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
  • Sealed 71-85 liters/2.5-3 cu.ft.
  • Vented 106-177 liters/3.75-6.25 cu.ft.
  • Overall Diameter 15.15", 384.8mm
  • Baffle Hole Diameter 13.77", 349.6mm
  • Magnet diameter 129mm
  • 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 148mm, 5.83"
  • Net Weight 6.7 lbs., 3 kg
  • Shipping Weight 8.8 lbs., 4 kg


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
  • Dustcap Composition Solid composition paper dust cap

Technical specifications


  • Nominal Diameter: 381 mm (15 in)
  • Overall Diameter: 384.8 mm (15.15 in)
  • Bolt Circle Diameter: 369.8 mm (14.56 in)
  • Mounting Holes Diameter: 6.4 mm (0.25 in)
  • Baffle Cutout Diameter: 352.3 mm (13.87 in)
  • Overall Depth: 148.1 mm (5.83 in)
  • Front Sealing Gasket: Yes
  • Rear Sealing Gasket: Yes
  • Impedance: 8 ohm
  • AES Power: 200 W
  • Program Power: 400 W
  • Sensitivity: 97 dB
  • Voice Coil Diameter: 38 mm (1.5 in)
  • Voice Coil Material: Copper voice coil
  • Voice Coil Former: Polyimide former
  • Magnetic Gap Depth: 6.4 mm (0.25 in)
  • Cone Material: Paper cone
  • Dust Cap Material: Solid composition paper dust cap
  • Surround Material: Cloth cone edge
  • Chassis Material: Pressed steel basket
  • Magnet Material: Ferrite magnet
  • Magnet Weight: 25 oz
  • Core Details: Vented and extended core
  • Sealed Enclosure Size: 71-85 L
  • Vented Enclosure Size: 106-177 L


Thiele and Small parameters:  Need some help? Read our quick guide to TS Params.


  • Resonance (Fs) - 41 Hz
  • DC Resistance (Re) - 5.88 Ohm
  • Voice Coil Inductance (Le) - 0.84 mH
  • Mechanical Q (Qms) - 7.23
  • Electrical Q (Qes) - 1.53
  • Total Q (Qts) - 1.26
  • Compliance Equivalent Volume (Vas) - 260 L
  • Peak Displacement Volume (Vd) - 325 cm3
  • Compliance (Cms) - 0.25 mm/N
  • Force Factor (BL) - 7.7 Tm
  • Moving Mass - System (Mms) - 59 g
  • Efficiency Bandwidth Product (EBP) - 27
  • Maximum Linear Excursion (Xmax) - 3.8 mm
  • Diaphragm Area (Sd) - 856.3 cm2
  • Maximum Mechanical Excursion (Xmech) - 8.4 mm

Shipping Information


  • Net Weight: 3.04 kg (6.7 lbs)
  • Shipping Weight: 3.99 kg (8.8 lbs)
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