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4x Eminence Beta-8A 8" Pro Audio Woofer American Standard Series 450W 8-ohms

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SKU:
4x Eminence Beta-8A T.C.
UPC:
Does Not Apply
Condition:
New
Availability:
Free Shipping
Type:
Midbass
Type:
Midrange
RMS Power:
225 Watts
Ohms:
8 Ohms
Size:
8 Inch
Qty.:
4 Speakers
Order before 3PM (EST) Mon-Fri for Same Day Shipping
$359.96

Product Description

Eminence Beta-8A American Standard Series 8" 225-Watt Replacement PA Speaker 8 Ohm

Recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable as a mid-bass speaker in sealed enclosures.

Specification
Nominal Basket Diameter
  • 8", 203 mm
Nominal Impedance*
  • 8 ?
Power Rating
Watts
  • 225 W
Music Program
  • 450 W
Resonance
  • 65 Hz
Usable Frequency Range
  • 78 Hz - 4.5 kHz
Sensitivity***
  • 95.1 dB
Magnet Weight
  • 34 oz.
Gap Height
  • 0.312", 7.9 mm
Voice Coil Diameter
  • 2", 51 mm
Thiele & Small Parameters
Resonant Frequency (fs)
  • 65 Hz
DC Resistance (Re)
  • 5.99 ?
Coil Inductance (Le)
  • 0.49m H
Mechanical Q (Qms)
  • 4.95
Electromagnetic Q (Qes)
  • 0.42
Total Q (Qts)
  • 0.38
Compliance Equivalent Volume (Vas)
  • 23.3 liters / 0.82 cu.ft.
Peak Diaphragm Displacement Volume (Vd)
  • 63 cc
Mechanical Compliance of Suspension (Cms)
  • 0.37 mm/N
BL Product (BL)
  • 9.6 T-M
Diaphragm Mass Inc. Airload (MMs)
  • 16 grams
Efficiency Bandwidth Product (EBP)
  • 156
Maximum Linear Excursion (Xmax)
  • 3 mm
Surface Area of Cone (Sd)
  • 210 cm2
Maximum Mechanical Limit (Xlim)
  • 7.4 mm
Mounting Information
Recommended Enclosure Volume
Sealed
  • 5.70-9.90 liters / 0.20-0.35 cu.ft.
Vented
  • 8.50-19.00 liters / 0.30-0.67 cu.ft.
Driver Volume Displaced
  • 0.027 cu.ft. / 0.76 liters
Overall Diameter
  • 8.24", 209.3 mm
Baffle Hole Diameter
  • 7.13", 181.1 mm
Front Sealing Gasket
  • Yes
Rear Sealing Gasket
  • Yes
Mounting Holes Diameter
  • 0.22", 5.6mm
Mounting Holes B.C.D.
  • 7.75", 196.9mm
Depth
  • 3.5", 88.9 mm
Net Weight
  • 6.6 lbs, 2.99 kg
Shipping Weight
  • 7.4 lbs, 3.36 kgs
Materials of Construction
Coil Construction
  • Aluminum voice coil
Coil Former
  • Polyimide former
Magnet Composition
  • Ferrite magnet
Core Details
  • 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