Eminence BETA-12LTA *: 12 inch Woofer with Wizzer Cone

Price: $84.99 $74.99

Recommended for professional audio as a woofer in small sealed monitor, or as a PA woofer or monitor in a vented enclosure.
225 watts / 48-8kHz / 2″ voice coil
8 ohms

SKU: BETA-12LTA Categories: , ,



*We do not stock this woofer at our store, but we can have it dropped shipped to your door from Eminence’s warehouse.

Click Here to Download PDF Spec Sheet

Click Here to Download PDF Cabinet Design


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*** 97.7

Magnet Weight 38 oz.

Gap Height 0.312″, 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 Diaphram 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) 8.0mm

Mounting Information:

Recommended Enclosure

Sealed 14-51 liters/0.5-1.8 cu.ft.

Vented 56.6-116 liters/2-4.1 cu.ft.

Overall Diameter 12.03″, 305.5mm

Baffle Hole Diameter 10.95″, 278.1mm

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 kg

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

Dustcap Composition Solid composition paper dust cap