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Eminence Beta-8A Replacement PA Speaker 8 in.

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The Eminence Beta-8A Replacement PA Speaker is recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable as a mid-bass speaker in sealed enclosures. E... Click To Read More About This Product


Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
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Ship to Store Available in: 3-7 Days (estimated) Fairfax, VA View More Stores For Availability Store Information


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The Eminence Beta-8A Replacement PA Speaker is recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable as a mid-bass speaker in sealed enclosures.

Eminence recommends the Beta-8A as a direct replacement for the Nady PCS-8.

  • Nominal Basket Diameter: 8", 203.2mm
  • Nominal Impedance*: 8 ohms
  • Power Rating: Watts 225W;
  • Music Program - 450W
  • Resonance: 65Hz
  • Usable Frequency Range
  • 78Hz-4.5kHz
  • Sensitivity***: 95.1
  • Magnet Weight: 34 oz.
  • Gap Height: 0.312", 7.92mm
  • Voice Coil Diameter: 2", 50.8mm
  • Resonant Frequency (fs)
  • DC Resistance (Re): 5.99
  • Coil Inductance (Le): 0.49mH
  • 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): 63cc
  • Mechanical Compliance of Suspension (Cms): 0.37mm/N
  • BL Product (BL): 9.6 T-M
  • Diaphram Mass inc. Airload (Mms): 16 grams
  • Efficiency Bandwidth Product (EBP): 156
  • Maximum Linear Excursion (Xmax): 3.0mm
  • Surface Area of Cone (Sd): 210.0 cm2
  • Maximum Mechanical Limit (Xlim): 7.4mm
  • Recommended Enclosure: Sealed: 5.7-9.9 liters/0.2-0.35 cu.ft.; Vented: 8.5-19 liters/0.3-0.67 cu.ft.
  • Overall Diameter: 8.24", 209.2mm
  • Baffle Hole Diameter 7.13", 181mm
  • Front Sealing Gasket: fitted as standard
  • Rear Sealing Gasket: fitted as standard
  • Mounting Holes Diameter: 0.22", 5.5mm
  • Mounting Holes B.C. D.: 7.75", 196.9mm
  • Depth: 3.5", 89mm
  • Net Weight: 6.6 lbs., 3 kg
  • Shipping Weight: 7.4 lbs., 3.4 kg
  • 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 edg
  • Dustcap Composition: Solid composition paper dust cap
  • *Please consult for specifications of models with alternative impedances.
  • **Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
  • ***The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms. Eminence response curves are measured under the following conditions: All speakers are tested at 1w/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with fiberglass on all six surfaces (three with custom-made wedges).
  • ****BETA 8CX, 10CX, 12CX and ACOUSTINATOR CX2008 are coaxial speakers with tweeter sold separately. Published Usable Frequency response contingent
Pro Coverage
Manufacturer's Warranty
7 year parts and labor warranty against defects on all speakers sold under Eminence name.

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EminenceBeta-8A Replacement PA Speaker

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Reviewed by 1 customer

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By Mark

from Bridgeton, MO

Comments about Eminence Beta-8A Replacement PA Speaker:

This model was used to replaced 8" woofers in a 15 year old juke box. The fidelity was better than the and pure1. Highly recommend them.

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