Osborn CF1

         The CF1 is a shielded version of the F1 mini speaker. It is small enough to sit on any television or on a shelf. It has a startling clarity with a rich midrange so that voices are accurately rendered. This is the ideal center speaker where a smaller speaker with a big performance is required. It features a dual voice coil mid/bass and a 3 way crossover for excellent dynamic range and bass extension.

Specifications:

SPEAKER DIMENSIONS 175 X 250 X 330 mm
WEIGHT 8 Kg.
EFFICIENCY 90 db for 1 watt at 1 meter.
DRIVER DIMENSIONS  
Tweeter 30mm inverted kevlar dome.  0.5 Kg magnet. Dome  weight  0.275g.
Mid/Bass   125 mm Polyglass cone with cast  aluminum frame.  28 mm Dual voice coil. Total moving mass 12.1g.  Driver weight 1.6Kg. 
FREQUENCY RESPONSE 50 to 19000 Hz +/- 2 db.-10 db. 40 and  19000 Hz.
CROSSOVER POINTS 3700 Hz @ 6 db/Octave.
MINIMUM IMPEDANCE 4 Ohm at 200 Hz.
MAXIMUM POWER 70 Watts R.M.S per Channel.
Rec. Ideal.     50 - 60 Watts per Channel.