We maintain consistent speaker quality through thorough testing and thorough checks of components, units, and systems!

KEF, which started out in an old barracks, now has offices, a factory, and an acoustics laboratory on a large site.

The goal is to produce things stably. In the factory where this policy is thoroughly implemented, there is one check before one unit is completed. In addition, this check

All the components for the bookshelf type 103.2 are here. All you need to do is attach them to the enclosure and you’re done!

To ensure that the materials are paired, strict weighing, measurement, and electrical testing are carried out from the time the materials are brought in.

Here, we also got to see the process of applying Bextrene, which Raymond had been talking about. The Bextrene cone is a shiny black product, but immediately after the application of the coating, it is pure white. Over time, it becomes transparent, revealing the black surface of the Bextrene.

Measurements and listening tests are carried out to finally produce the final product!!!!

The completed units are then carefully matched as a pair and housed in an enclosure to form a complete speaker system. However, this is not the final step.

“All the finished woofers are bare like this,” explains Technical Director Lawrence Fincham, noting that matching the left and right pairs in stereo is important.

The completed 103.2 is being carried into the anechoic chamber. Once placed on the stand, it automatically enters the chamber.

After undergoing a simple frequency response test, the completed speaker system is sent to a measurement room, where pulse measurements are made. The speakers are placed on a conveyor belt and automatically transported in front of a microphone in an anechoic chamber filled with sound-absorbing material. A pulse signal is emitted from the speaker, and the sound picked up by the microphone is stored in a computer, which will be described on the next page.

After data measurements are completed, the system undergoes final listening in the factory’s listening room, where the main sound sources used are, of course, human voices and an orchestra.

The completed system is measured in an anechoic chamber within the factory. The speakers are adjusted by comparator. All data from this is stored in a computer.