Eminence Delta Pro-8A 8" Cast Frame Speaker, 8 Ohm

PA SKU # EMN DELTAPRO8A MFR # DELTA PRO-8A UPC # 876358001613
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  • 8" Cast Frame Driver, 8 Ohm, 225 Watt

8" Cast Frame Driver, 8 Ohm, 225 Watt

The Eminence Delta Pro-8A 8" Midrange/Midbass driver is optimized for professional audio or MI (musical instrument) speaker system applications. Its truncated cast aluminum basket is great for stacking in a line array. The heat sink-style fins between the frame and magnet provide critical cooling to the voice coil, thereby reducing power compression and increasing wattage capacity.
  • Massive 59 oz. ceramic ferrite magnet
  • Die-cast aluminum basket
  • High power handling and efficiency
  • SPECIFICATION
  • Nominal Basket Diameter: 8", 203mm
  • Nominal Impedance*: 8 ohms
  • Power Rating**
  • Watts: 225W
  • Music Program: 450W
  • Resonance: 69Hz
  • Usable Frequency Range: 100Hz - 3kHz
  • Sensitivity***: 97.8dB
  • Magnet Weight: 59 oz.
  • Gap Height: 0.31", 7.95mm
  • Voice Coil Diameter: 2", 50.8mm
  • THIELE & SMALL PARAMETERS
  • Resonant Frequency (fs): 69Hz
  • DC Resistance (Re): 5.4
  • Coil Inductance (Le): 0.82mH
  • Mechanical Q (Qms): 6.43
  • Electromagnetic Q (Qes): 0.22
  • Total Q (Qts): 0.22
  • Compliance Equivalent Volume (Vas): 18.32 liters / 0.65 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd): 66cc
  • Mechanical Compliance of Suspension (Cms): 0.28mm/N
  • BL Product (BL): 14.1 T-M
  • Diaphragm Mass Inc. Airload (MMs): 19 grams
  • Efficiency Bandwidth Product (EBP): 307
  • Maximum Linear Excursion (Xmax): 3mm
  • Surface Area of Cone (Sd): 218.2 cm2
  • Maximum Mechanical Limit (Xlim): 7mm
  • MOUNTING INFORMATION
  • Recommended Enclosure Volume
  • Sealed: 8-16 liters / 0.3-0.6 cu.ft.
  • Vented: 10-16 liters / 0.4-0.6 cu.ft.
  • Driver Volume Displaced: 63.7 cu.in. / 1.04 liters
  • Overall Diameter: 8.02", 203.71mm
  • Baffle Hole Diameter: 7.36", 186.9mm
  • Front Sealing Gasket: Fitted as standard
  • Rear Sealing Gasket: Fitted as standard
  • Mounting Holes Diameter: 0.28", 7.1mm
  • Mounting Holes B.C.D.: 8.6", 218.4mm
  • Depth: 3.75", 95mm
  • Net Weight: 10 lbs, 4.5 kg
  • Shipping Weight: 11 lbs, 4.9 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: Die-cast aluminum basket
  • Cone Composition: Paper cone
  • Cone Edge Composition: Cloth cone edge
  • Dust Cap Composition: Solid composition paper dust cap
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