![](../../../Pictures/20/8/96XG50E.JPG) 20896 |
Click on the above image for a full view ... |
|
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 |
A twin-cone model for full range output in compact P.A. systems. The addition of the second cone gives extended high frequency response up to a useful 10kHz. |
Eminence Model No. |
Beta 12 LT |
Nominal Chassis Diameter: |
12 , 304.8mm |
Impedance: |
8![](../../../images/ohm.gif) |
Usable Frequency Range: |
50Hz to 10kHz |
Average Sensitivity 1W @ 1m: |
99dB |
Magnet Gap Depth: |
0.312 , 8mm |
Voice Coil Diameter: |
2 , 50.8mm |
Overall Diameter: |
12.187 , 309mm |
Baffle Hole Diameter: |
11.187 , 284.2mm |
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.: |
11.562 , 293.7mm |
Shipping Weight: |
11lbs, 5kg |
Resonant Frequency |
(fs): |
52.85Hz |
Impedance |
(Re): |
6.96 |
Coil Inductance |
(Le): |
0.71mH |
Electromagnetic Q |
(Qes): |
0.47 |
Compliance Equivalent Volume |
(Vas): |
124.42 litres |
Displacement Volume |
(Vd): |
42.26cc |
of Suspension |
(Cms): |
0.3126mm/N |
BL Product |
(BL): |
11.97 T-M |
Diaphragm Mass inc. Airload |
(Mms): |
29.0grams |
Equiv. Resistance of Mechanical |
Suspension Loss |
(Rms): |
2.6249N*sec/M |
Efficiency Bandwidth Product |
(EBP): |
112.9 |
Voice Coil Overhang |
(Xmax): |
0.8mm |
Surface Area of Cone |
(Sd): |
532.36cm<equal; |
Impedance at Resonance |
(Zmax): |
61.6 |
|