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The Eminence Beta-12LTA 12" Full-Range/PA Driver is a twin-cone model for full range output in compact PA speaker systems. The addition of the second cone gives extended high frequency response up to a useful 8,000 Hz. Also recommended for extended-range musical instrument systems, such as keyboards or acoustic guitar. Made in the USA. 7-year manufacturer's warranty!
Nominal Diameter: 12"
Power Handling (RMS): 225 Watts
Power Handling (max): 450 Watts
Impedance: 8 ohms
Frequency Response: 48 to 8,000 Hz
Sensitivity: 97.7 dB 1W/1m
Voice Coil Diameter: 2"
Magnet Weight: 38 oz.
Resonant Frequency (Fs): 45 Hz
DC Resistance (Re): 7.37 ohms
Voice Coil Inductance (Le): 0.83 mH
Mechanical Q (Qms): 6.44
Electromagnetic Q (Qes): 0.55
Total Q (Qts): 0.51
Compliance Equivalent Volume (Vas): 4.81 ft.³
Mechanical Compliance of Suspension (Cms): 0.34 mm/N
BL Product (BL): 11.70 Tm
Diaphragm Mass Inc. Airload (Mms): 36g
Maximum Linear Excursion (Xmax): 3.2 mm
Surface Area of Cone (Sd): 532.4 cm²
Materials of Construction
Cone Material: Paper
Surround Material: Cloth
Voice Coil Wire Material: Copper
Voice Coil Former: Kapton® / Polyimide
Basket / Frame Material: Steel
Magnet Material: Ferrite
Overall Outside Diameter: 12.03"
Baffle Cutout Diameter: 10.95"
# Mounting Holes: 8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume: 2.42 ft.³
Sealed F3: 76 Hz
Vented Volume: 7.72 ft.³
Vented F3: 39 Hz
Eminence Beta-12LTA 12" Full-Range/PA Driver
Brand: Eminence Speaker
Part Number: 290-409
Product Category: Pro Woofers, Subwoofers & Midrange Speakers
Unit of Measure: EA
Weight: 11 lbs.
NOTE: International/PO BOX deliveries are not available.
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