Drive units

Cabinet
The cabinet is tuned to make a natural roll-off without any ringing in step response. Cabinet are made of 19mm thick HDF-board with internal damping pads for minimising cabinet material resonances. Cabinet is heavily braced to give stiff cabinet and the damping pads make in non resonant so the cabinet don’t store sound in the time domain. Natural wool is used for internal acoustic damping because it sond best and have a wider frequency damping  of the internal sound. It is loose packed so we don’t store sound in the damping material. We use minimum damping material and apply it where it do the most use, in centre and middle of the cabinet there air speed is at it maximum. Then we can apply minimum damping material to achieve  maximum damping of the internal sound.