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Eminence Beta 15A

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Product Description

This table charts the specifications for the BETA-15A speaker  Specification

Nominal Basket Diameter 15", 381mm
Nominal Impedance* 8 ohms
Power Rating**
Watts 300W
Music Program 600W
Resonance 35Hz
Usable Frequency Range 45Hz - 3.7kHz
Sensitivity*** 98.2dB
Magnet Weight 34 oz.
Gap Height 0.31", 7.92mm
Voice Coil Diameter 2", 50.8mm
Thiele & Small Parameters
Resonant Frequency (fs) 35Hz
DC Resistance (Re) 6.32
Coil Inductance (Le) 1.1mH
Mechanical Q (Qms) 8.1
Electromagnetic Q (Qes) 0.63
Total Q (Qts) 0.58
Compliance Equivalent Volume (Vas) 334.6 liters / 11.8 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 330cc
Mechanical Compliance of Suspension (Cms) 0.35mm/N
BL Product (BL) 11.5 T-M
Diaphragm Mass Inc. Airload (MMs) 60 grams
Efficiency Bandwidth Product (EBP) 56
Maximum Linear Excursion (Xmax) 4mm
Surface Area of Cone (Sd) 823.7 cm2
Maximum Mechanical Limit (Xlim) 11.6mm
Mounting Information
Recommended Enclosure Volume
Sealed 45-62 liters / 1.6-2.2 cu.ft.
Vented 99-175.6 liters / 3.5-6.2 cu.ft.
Driver Volume Displaced 203.3 cu.in. / 3.33 liters
Overall Diameter 15.15", 384.8mm
Baffle Hole Diameter 13.77", 349.6mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.25", 6.4mm
Mounting Holes B.C.D. 14.56", 369.9mm
Depth 6.05", 154mm
Net Weight 8.8 lbs, 4 kg
Shipping Weight 10.8 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 Pressed steel basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dust Cap Composition Solid composition paper dust cap

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