Karat Reference 2 DC Technical Information

Regarding the baskets: We use Magnesium (no Aluminum) for the woofer because of the very high stiffness of this material and plastic (polycarbonate with 20% glass pellets) for the midrange because of its very high inner damping. The reason for that is we want to use material with major resonance behavior well outside the used frequency range of each driver.

The picture below shows the cone of the R2 midrange driver with a theoretical displacement of 5mm at around 1kHz . Of course it is impossible to produce a displacement of 5mm at 1kHz with a real driver, but it shows impressive the behavior of the cone.

 

Theoretical Displacement R2 Midrange Driver Cone
The next two pictures are from our simulation software "OERSTED" from IES. The pictures show the B-field of a standard motor in comparison to the motor of the Reference 2. Two screenshots show the magnetic field within the air gap and the other two shows the magnetic flow within the material.

The remaining pictures are from our Klippel distortion analyzer system "KlippelDA1". This system allows us to measure not only the linear parameters but also the large signal parameters of a driver. For example, the two pictures show the change of the parameters over the displacement of the cone into positive or negative direction.