Beyma 12 MI 100 - 12" Midrange Speaker

Specifications

Nominal Basket Diameter


12" / 300mm

Impedance


8 ohms

AES Power Rating


450 Watts
Program Power 900 Watts

Frequency Response


40Hz - 4.0kHz

Sensitivity (1W/1m)


100dB

Voice Coil Diameter


3" / 77mm
Recom. Enclosure Volume .07-1.75 ft3 / 20-50 Liters
Voice Coil Length 13.5 mm
Air Gap Height 10 mm
X Damage (peak to peak) 24 mm
BL Factor 21.6 N/A
Magnetic Assembly Weight 14.2 lb. / 6.5 kg.

Mounting Information
Overall Diameter 12.28" / 312mm
Bolt Circle Diameter 11.6" / 294.5mm
Baffle Cutout Diameter-
- Front Mount 10.9" / 277.5mm
- Rear Mount 11.02" / 280mm
No. Of Mounting Holes 8
Volume Displaced By Driver 0.19 ft3 / 5.5 Liters
Overall Depth 5.47" / 139mm
Net Weight 15.8 lb. / 7.2 kg.
Shipping Weight 17.6 lb. / 8 kg.

Materials
Basket Die Cast Aluminum
Cone Paper
Surround Treated Cloth
Voice Coil Edgewound Aluminum Wire
Magnet High Currie Temperature Ferrite

Thiele-Small Parameters
Resonant Frequency (fs) 58 Hz
Impedance (Re) 6.3 ohms
Coil Inductance (Le) 1.0 mH
Mechanical Q (Qms) 5.54
Electrical Factor(Qes) .23
Total Q (Qts) .22
Comp. Equivalent Vol. (Vas) 2.26 ft3 / 64 Liters
Voice Coil Overhang (Xmax) 2.0 mm
Diaphragm Mass (Mms) 47 Grams
Surface Area of Cone (Sd)m2 0.0530m2
Reference Efficiency 5.1%
Displacement Volume (Vd) 159 cm3