Some time has passed since Fostex FE108-Sol drivers took the place of the former Sigma model in my back-loaded horn enclosures and I had enough time to experiment further with them. As mentioned earlier the disposal of the notch filters, necessary for linearization of the frequency response of the Sigmas, brought a great deal of refinement. I realized how destructively the combination of resistor, capacitor and inductor on the signal path could act and from the perspective of time I can say – there is no way back to use them.
Today I would like to talk about the backbone of my system – the rack, this sacred place where all the electronic components are placed. Some of you might ask what is the difference between a regular lowboard one can obtain in every furniture shop and a HiFi rack made especially for audio applications. In order to comprehend the difference one should first realise what a tremendous impact vibrations have on audio reproduction.