Eminence BETA-12LTA 12-In Rawframe Speaker
Eminence BETA-12LTA 12″ Rawframe Speaker
Recommended for professional audio as a woofer in small sealed monitors, or as a PA woofer or monitor in a vented enclosure.
Specifications:
- 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 cu.in. / 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
