Digital delay module for S10 DP and S20 DP subs. Delay time from 1.5 to 99.5 ms. It allows you to align subwoofers to full-range speakers with a calculated delay time and/or create special configutations, such as cardioid and and-fired, with subs not equipped with built-in delay. It comes up with delay XLR output to connect others subs with the same delay time.