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Eminence

Eminence Alpha 5-8 5" 125W 8 Ohm Loudspeaker Driver

Product Code: EMIALPHA5A Brand: Eminence Model: ALPHA 5-8
Eminence Alpha 5-8 5 inch 125W 8 Ohm Loudspeaker Driver
£53.26
£44.38 ex VAT
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15 IN STOCK WITH SUPPLIER - 
 usually available in 3-5 weeks
15 IN STOCK
WITH SUPPLIER
usually available in 3-5 weeks
NO DELIVERY PRICE available for Country
Eminence Alpha 5-8 5" 125W 8 Ohm Loudspeaker Driver

The Alpha 5 offers unmistakable performance with an emphasis on value. Rated at 250 watts program power, this 5” midbass features a water-resistant cone and dust cap, making it an excellent choice for line array or column array applications.

Technical specifications


  • Nominal Diameter: 127 mm (5 in)
  • Overall Diameter: 149.1 mm (5.87 in)
  • Mounting Holes Diameter: 0.2", 5mm mm
  • Baffle Cutout Diameter: 121.9 mm (4.8 in)
  • Overall Depth: 73.9 mm (2.91 in)
  • Front Sealing Gasket: Yes
  • Rear Sealing Gasket: Yes
  • Impedance: 8 ohm
  • AES Power: 125 W
  • Program Power: 250 W
  • Power: 125 W
  • Sensitivity: 89.4 dB
  • Frequency Range: 87 Hz - 3.5 kHz Hz
  • Voice Coil Material: Aluminum voice coil
  • Voice Coil Former: Polyimide former
  • Magnetic Gap Depth: 5.8 mm (0.23 in)
  • Cone Material: Water resistant pulp
  • Dust Cap Material: Water resistant paper
  • Surround Material: Cloth cone edge
  • Chassis Material: Pressed steel basket
  • Magnet Material: Ferrite magnet
  • Magnet Weight: 20 oz
  • Core Details: Vented core
  • Driver Displacement Volume: 1.091 L
  • Sealed Enclosure Size: Acceptable L
  • Vented Enclosure Size: Acceptable L


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


  • Resonance (Fs) - 87 Hz
  • DC Resistance (Re) - 5 Ohm
  • Voice Coil Inductance (Le) - 0.29m mH
  • Mechanical Q (Qms) - 11.81
  • Electrical Q (Qes) - 0.56
  • Total Q (Qts) - 0.54
  • Compliance Equivalent Volume (Vas) - 6.14 L
  • Peak Displacement Volume (Vd) - 60.8 cm3
  • Compliance (Cms) - 0.42 mm/N
  • Force Factor (BL) - 6.22 Tm
  • Moving Mass - System (Mms) - 8 g
  • Efficiency Bandwidth Product (EBP) - 155
  • Maximum Linear Excursion (Xmax) - 5.92 mm
  • Diaphragm Area (Sd) - 102.6 cm2
  • Maximum Mechanical Excursion (Xmech) - 6.4 mm

Shipping Information


  • Net Weight: 1.41 kg (3.1 lbs)
  • Shipping Weight: 1.59 kg (3.5 lbs)
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