The Hydro Mount DL, as a hydraulically damping rubber mount, solved the designer’s conflict of how to mount a mass that is excited by a wide frequency spectrum. Particularly if low frequencies – between 5 Hz and 15 Hz – can occur as the excitation frequency, on the one hand, high damping in the natural frequency range of the system, and on the other, a good isolation property above this natural frequency (supercritical mounting) is necessary.