Beta 8A

Beta 8A

Beta 8A

Beta 8A
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NZ $199.00
incl GST
Stock Level:
Recommended for professional audio mid-bass applications or as a woofer in vented enclosures.
Recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable as a mid-bass speaker in sealed enclosures.

Nominal Basket Diameter 12", 304.8mm
Nominal Impedance* 8 ohms
Power Rating**
Watts 225W
Music Program 450W
Resonance 45Hz
Usable Frequency Range 48Hz - 8kHz
Sensitivity*** 97.7dB
Magnet Weight 38 oz.
Gap Height 0.31", 7.92mm
Voice Coil Diameter 2", 50.8mm
Thiele & Small Parameters
Resonant Frequency (fs) 45Hz
DC Resistance (Re) 7.37
Coil Inductance (Le) 0.83mH
Mechanical Q (Qms) 6.44
Electromagnetic Q (Qes) 0.55
Total Q (Qts) 0.51
Compliance Equivalent Volume (Vas) 136.3 liters / 4.8 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 170cc
Mechanical Compliance of Suspension (Cms) 0.34mm/N
BL Product (BL) 11.7 T-M
Diaphragm Mass Inc. Airload (MMs) 36 grams
Efficiency Bandwidth Product (EBP) 82
Maximum Linear Excursion (Xmax) 3.2mm
Surface Area of Cone (Sd) 532.4 cm2
Maximum Mechanical Limit (Xlim) 8mm
Mounting Information
Recommended Enclosure Volume
Sealed 14-51 liters / 0.5-1.8 cu.ft.
Vented 56.6-116 liters / 2-4.1 cu.ft.
Driver Volume Displaced 122 / 2 liters
Overall Diameter 12.03", 305.5mm
Baffle Hole Diameter 11.07", 281.2mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.25", 6.4mm
Mounting Holes B.C.D. 11.59", 294.3mm
Depth 4.47", 114mm
Net Weight 8.1 lbs, 3.7 kg
Shipping Weight 10.2 lbs, 4.6 kgs
Materials of Construction
Coil Construction Copper 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

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Auckland, New Zealand

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