The Time Window, originally designed in 1974 by DCM founder Steve Eberbach, has been designed in such a way that it produces a 270 degree horizontal dispersion pattern. The front of the speaker is shaped like a triangle, which divides into two "L" and "R" sided baffles. These two baffles have speaker drivers mounted in them which when combined, sum into a coherent 270 degree radiation pattern.
The speakers are designed as "Left and Right Channel" mirrored pairs. For example, the "Right" channel speaker is designed in this manner: On the left baffle, the speaker drivers produce a direct sound field. On the right baffle, the mounted drivers are designed to reflect sound off a right side wall. The Time Window also has adjustable controls which allow the user to adjust the mid and treble volume reproduced from the right reflection baffle. Thus, this design approach allows one to adjust the spread of the soundstage in terms of both mid and high frequencies.
The rear of the cabinet is also unique as it is curved. This produces cleaner bass as the backwave bass energy inside the cabinet does not reflect and bounce off the woofer cone as severely as it does on box shape designs. The woofers in the DCM's are also mounted high in the cabinet. This also produces cleaner bass by reducing room and floor interactions.