KEF C75

Commentary

C-Series tall boy speaker system.

A 20 cm cone type woofer using polymer cone is mounted in the low range.
This unit uses a 3.8 cm diameter voice coil and die-cast chassis.

20cmUNI-Q driver, a coaxial type unit unique to KEF, is installed in the middle and high range.
This UNI-Q driver consists of a 20 cm cone type woofer and a 2.5 cm dome type tweeter. It is not only arranged coaxially but also arranged in the depth direction. In addition, the outer diameter of the cone of the woofer compensates for the directivity factor or Q of the tweeter so that both units have the same directivity in the crossover range.
In order to realize the structure of the UNI-Q, a neodymium iron boron magnet with energy 10 times that of ferrite is used in the magnetic circuit of the UNI-Q, and the size of the magnetic circuit of the UNI-Q is reduced, and the UNI-Q is housed in the voice coil of the woofer unit.
A 3.8 cm diameter voice coil and diecast chassis are used for the woofer part, and a polymer dome is used for the tweeter part.

The enclosure is hermetically sealed.

Model Rating

Method	3-Way, 2-Speaker, Sealed System, Tall Boy Type
Units Used	For low band : 20 cm cone type For Mid and High Band : 20 cm Coaxial Type (20 cm Cone + 2.5 cm Dome)
Frequency characteristic	57 Hz to 20 kHz ± 3 db
Impedance	4 Ω
Output sound pressure level	91dB/2.83V/1m
Maximum output level	112dB
Crossover frequency	300 Hz, 3 kHz
Internal volume	29.3litres
External dimensions	Width 246x Height 720x Depth 256 mm
Weight	12.9kg