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Brand


Category
Eminence
Eminence Alpha 4-8 - 4" 55W 8 Ohm
SPL: 88.4 1W/1m Fs: 123 Hz Xmax: 2.6mm
 
Product Code: EMIAL4A | Brand:

    
£15.83
£13.19 ex VAT
Qty:

2-3 £15.67 ea.4-7 £15.51 ea.8+ £15.35 ea.
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Usually available in <br>12-16 days
Usually available in
12-16 days
£7.78 DELIVERY to mainland UK

Eminence Alpha 4-8 - 4" 55W 8 Ohm

Perfectly suited for line arrays, car doors and side panels, and other tight fitting applications, the Alpha 4 is a very versatile 110 watt driver that can be used full range, as a midbass, or as a midrange. They can be stacked by themselves in a column for vocal applications, or in conjunction with a tweeter and a sub for compact, high performance PA or MI applications.

SPECIFICATION:

  • Nominal Basket Diameter 4", 102 mm
  • Nominal Impedance 8 ohms
  • Program Power 110 W
  • Watts 55 W
  • Resonance 123 Hz
  • Usable Frequency Range 105 Hz - 12 kHz
  • Sensitivity* 88 dB
  • Magnet Weight 10 oz.
  • Gap Height 0.14", 3.7 mm
  • Voice Coil Diameter 1", 25 mm


THIELE & SMALL PARAMETERS:

  • Resonant Frequency (fs) 123 Hz
  • DC Resistance (Re) 6.73 Ω
  • Coil Inductance (Le) 0.28m H
  • Mechanical Q (Qms) 6.83
  • Electromagnetic Q (Qes) 0.84
  • Total Q (Qts) 0.75
  • Compliance Equivalent Volume (Vas) 1.94 liters / 0.07 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd) 15 cc
  • Mechanical Compliance of Suspension (Cms) 0.42 mm/N
  • BL Product (BL) 4.94 T-M
  • Diaphragm Mass Inc. Airload (MMs) 4 grams
  • Efficiency Bandwidth Product (EBP) 146
  • Maximum Linear Excursion (Xmax) 2.6 mm
  • Surface Area of Cone (Sd) 57.7 cm2
  • Maximum Mechanical Limit (Xlim) 4.5 mm


MOUNTING INFORMATION:

  • Recommended Enclosure Volume Sealed 1.87-8.5 liters / 0.07-0.3 cu.ft. Vented 2.27-4.25 liters / 0.08-0.15 cu.ft.
  • Driver Volume Displaced 0.012 cu.ft. / 0.33 liters
  • Overall Diameter 4.57", 116.1 mm
  • Baffle Hole Diameter 3.77", 95.8 mm
  • Front Sealing Gasket Yes
  • Rear Sealing Gasket Yes
  • Mounting Holes Diameter 0.15", 3.8mm
  • Mounting Holes B.C.D. 4.25", 108mm
  • Depth 2.31", 58.7 mm
  • Net Weight 1.5 lbs, 0.68 kg
  • Shipping Weight 1.9 lbs, 0.86 kgs


MATERIALS OF CONSTRUCTION:

  • Coil Construction Copper voice coil
  • Coil Former Polyimide former
  • Magnet Composition Ferrite magnet
  • Core Details Non-Vented core
  • Basket Materials Pressed steel basket
  • Cone Composition Paper cone
  • Cone Edge Composition Cloth cone edge
  • Dust Cap Composition Solid composition paper dust cap
Other Eminence products similar to Eminence Alpha 4-8 - 4" 55W 8 Ohm:
Eminence Alpha 4-4 - 4" 55W 4 Ohm

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