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KEF C-40

 The C40 was generous in both volume and drive unit. Bass was plentiful and extended, and the design was balanced to operate clear of room boundaries on open stands.
The two new 200mm bass/midrange units used polypropylene cones.
Operating as a 2½-way system, the lower driver was used only at the lowest frequencies, augmenting and extending bass output, substantially improving power handling capacity, and assisting bass damping. 
 The C40 is very reasonably priced for such a precisely engineered loudspeaker, considering the size of the cabnet
The system would go exceedingly loud, would handle plenty of power, and, with a generous bass delivery, was particularly suited to the cost- conscious rock listener.
Specification: C40
System Type: 2½-way, floor standing
Enclosure type: Closed box
Nominal Impedance: 8ohms
Rated maximum power: 100W programme
Frequency response: 68Hz to 20kHz +/-3dB (-6dB at 58Hz)
Sensitivity: 91dB for a pink noise input of 2.83V
Maximum output: 111dB on programme peaks under typical listening conditions
Finish: Simulated Walnut, Rosewood, Black Ash
System: SP3054
Drive units: 2 x B200 bass unit (SP1205), T33 tweeter (SP1211)
Crossover: SP2054
Size: 650 x 247 x 262mm (25.6 x 9.7 x 10.3 inches)
Weight: 9.6kg (21.1 lb)

Produced:  1985 - 88

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