Eminence BETA15A 15In Woofer Replacement
Eminence BETA15A 15″ Woofer Replacement
Recommended for professional audio as a woofer in sealed and vented enclosures.
Specifications:
- 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
