KEF C4 Subwoofer

The appearance of KEF C4 sbuwoofer is moderately conservative, only frontal slotted bass-reflex outlooks on the body with classical sizes. Low-frequency driver here is of 8 inches (200 mm), the amplifier is also not the most powerful, but 200 W for usual living room will be enough. The body is assembled from thick MDF plates and the frontal panel has a two-layered antiresonant construction. Among controls there are cutoff frequency of crossover (40-140 Hz), volume level and phase inversion of 0/180 degrees and an additional rise of basses by 3 or 6 dB. Among inputs there are only linear LFE that slightly limits the possibilities of integration into different audio complexes. Build quality is traditionally very high, variants of the finish are classical black ash and Europian walnut.

When you configurate KEF C4, you should select cutoff frequency and the level carefully, because these controls are very sensitive. We had to tinker with them, but the result didn't dissapoint us. On musical phonograms the sub kept the balance between bass depth and its speed. Parts of individual instruments were perfectly recognised and, what is especially valuable, even at high volume. However, attack seemed to be a bit smoothed and the dynamical potential - to be insuficient. Separate overhangs are transfered correctly, but at the abundance of lower bass in the recording part of them sometimes get lost. There are no side tones of the body, it is damped just exemplary.

In the mode of home theatre the sub showed itself not so confidently. With all the advantages, described above, KEF C4 not very convincingly conveyed "global" special effects. Due to this they lost scale and energy. The general character of the sub in the system of home theatre is quite calm and measured; it doesn't aim to produce a bright impression on a listener, but honestly and impartially does its job.