KEF Reference Model Four
4-Way, 6-Driver Floorstanding Loudspeaker
A multi-component, high quality, hand soldered dividing network and six drive units are utilised in the model Four.
The 160mm Uni-Q driver used in the other reference series speakers is used for upper mid and high frequencies.
Type: 4 way, 6 driver loudspeaker system
Frequency Response: 35Hz to 20kHz
Recommended Amplifier: 50 to 400W
Crossover Frequency: 160, 500, 2800Hz
Bass: 2 x 250mm B250 pulp cone
Midbass: 2 x 160mm B160 polypropylene cone
Midrange: 1 x 160mm MB160 polypropylene cone
Tweeter: 1 x 25mm NT25 soft dome
Enclosure: 102.5 litre
Dimensions: 1266 x 300 x 390mm
If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.
If you have additional documentation please consider donating a copy to our free archive.