Eminence BETA-6A: 6.5 Inch Mid-Bass/Woofer
BETA-6A High power 6.5 inch Mid/Bass driver for use in concert sound systems or in high power auto sound as a mid/bass or a midrange driver. Works well in tiny sealed or vented enclosures, and in Infinite Baffles too.
Click Here to Download PDF Spec Sheet
Click Here to Download PDF Cabinet Design
Specs:
Nominal Basket Diameter 6″, 165 mm
Nominal Impedance* 8 Ω
Power Rating** Watts 175 W
Music Program 350 W
Resonance 123 Hz
Usable Frequency Range 95 Hz – 4 kHz
Sensitivity*** 94 dB
Magnet Weight 30 oz.
Gap Height 0.25″, 6.4 mm
Voice Coil Diameter 2″, 51 mm
Thiele & Small Parameters:
Resonant Frequency (fs) 123 Hz
DC Resistance (Re) 5.18 Ω
Coil Inductance (Le) 0.43m H
Mechanical Q (Qms) 3.46
Electromagnetic Q (Qes) 0.66
Total Q (Qts) 0.56
Compliance Equivalent Volume (Vas) 3.51 liters / 0.12 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 61.1 cc
Mechanical Compliance of Suspension (Cms) 0.15 mm/N
BL Product (BL) 8.13 T-M Diaphragm Mass Inc.
Airload (MMs) 11 grams
Efficiency Bandwidth Product (EBP) 185
Maximum Linear Excursion (Xmax) 4.5 mm
Surface Area of Cone (Sd) 129.9 cm2
Maximum Mechanical Limit (Xlim) 5.7 mm
Mounting Information:
Recommended Enclosure Volume
Sealed 2.38-9999.99 liters / 0.08-9999.99 cu.ft.
Vented 5.10-14.16 liters / 0.18-0.50 cu.ft.
Driver Volume Displaced 0.021 cu.ft. / 0.6 liters
Overall Diameter 6.59″, 167.4 mm
Baffle Hole Diameter 5.65″, 143.5 mm
Front Sealing Gasket: Yes
Rear Sealing Gasket: Yes
Mounting Holes Diameter 0.23″, 5.8mm
Mounting Holes B.C.D. 6.06″, 153.9mm
Depth 2.66″, 67.6 mm
Net Weight 5.6 lbs, 2.54 kg
Shipping Weight 6.3 lbs, 2.86 kgs
Materials of Construction:
Coil Construction Aluminum voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Vented and extended core
Basket Materials Pressed steel basket
Cone Composition Water resistant paper cone
Cone Edge Composition Treated cloth cone edge
Dust Cap Composition Water resistant treated paper dust cap
