Product Details
250mm (10in) 150W Power Speaker
Eminence


20892
Click on the above
image for a full
view ...
Description:
Materials of construction 
  Kapton coil former
  Polyamide-imide coated copper voice coil
  APS ferrite magnet
  Pressed steel chassis
  Paper cone
  Plasticised cloth (linen) cone edge
  Solid composition paper dust dome
Performance optimised for lead guitar. Also suitable for bass guitar, vocal P.A., keyboards, discotheques, club music systems and stage monitors. 
Eminence Model No. Beta 10
Nominal Chassis Diameter: 10 , 254mm
Impedance: 8
Power Rating: 150Wrms
Resonance: 51Hz
Usable Frequency Range: 50Hz to 4kHz
Average Sensitivity 1W @ 1m: 98dB
Magnet Weight: 34oz.
Magnet Gap Depth: 0.312 , 8mm
Voice Coil Diameter: 2 , 50.8mm
Mounting Information 
Overall Diameter: 10 , 254mm
Baffle Hole Diameter: 9.25 , 235mm
Front Sealing Gasket: fitted as standard
Rear Sealing Gasket: fitted as standard
Fixing Holes Diameter (8 off): 0.275 , 7mm
Fixing Hole P.C.D.: 9.625 , 244.5mm
Depth: 3.98 , 101.1mm
Weight: 7.3lbs, 3.32kg
Shipping Weight: 9.5lbs, 4.32kg
Thiele-Small Parameters 
Resonant Frequency (fs): 51.96Hz 
Impedance (Re): 6.03 
Coil Inductance (Le): 0.69H 
Electromagnetic Q (Qes): 0.52 
Mechanical Q (Qms): 7.49 
Total Q (Qts): 0.49 
Compliance Equivalent Volume (Vas): 82.14 litres 
2.90 cu.ft
Peak Diaphragm 
Displacement Volume (Vd): 107.20cc 
Mechanical Compliance 
of Suspension (Cms): 0.4630mm/N 
BL Product (BL): 11.58 T-M 
Diaphragm Mass inc. Airload (Mms): 20.3 grams 
Equiv. Resistance of Mechanical 
Suspension Loss (Rms): 0.8835N*sec/M 
Efficiency Bandwidth Product (EBP): 99.2 
Voice Coil Overhang (Xmax): 3.0mm 
Surface Area of Cone (Sd): 355.41cm<equal; 
Impedance at Resonance (Zmax): 92.2