KEF and Linn have completed a major sonic improvement project. Working together, the British hi-fi brands have combined and integrated their proprietary loudspeaker technologies into a model of each other's speakers.

Using Linn’s Exakt technology, KEF’s R&D engineers have developed an Exakt crossover for their Reference 5 model. This crossover uses the processing engine in the Linn Exaktbox to eliminate the phase non-linearity of the passive crossover and the aggregate output of the drive units, ensuring all frequencies are time-aligned.
A pair of KEF’s Reference 5s (pictured) was recently modified for active operation by bypassing the internal passive crossover, allowing the individual LF, MF and HF sections to be driven directly by separate power amplifiers fed with signals from the digital crossover in the Linn Exaktbox. This was demonstrated at the recent Music High End Show in Munich.
KEF
Linn