a tma is limited by its cooling process embodiments of the present invention thus effectively extract the high frequency content of nominally any actuator having both high and low frequency content such as a tma indeed for convenience reference is made herein to tmas with the understanding that nominally any type of actuator may be used moreover while representative embodiments hereof are adapted to actuators having both relatively high and low frequency content e g mutually distinct forward and return stroke rates various embodiments may use actuators without such distinct frequency content without departing from the scope of the present invention as mentioned above this high frequency extraction may be accomplished using any number of various configurations such as the opposed chevron pairs 110 or opposed actuator pairs 10 as shown in fig3 for example turning now to fig2 b more than two actuator pairs 110 may be used in parallel in either single or multiple layers in this example an array of five or more chevron pairs 110 may be coupled in parallel to a common stage 130 to produce positioner 120 such a parallel configuration may be used to still further increase the bandwidth in a given direction this increased bandwidth may be realized by using controller 12 fig2 a to actuate the various parallel actuator pairs 110 sequentially in relatively close succession e g to provide pulses in closer succession than may be possible using only the two actuator pairs 110 of positioner 220 fig2 a the parallel pairs 110 may be disposed within the same layer or within multiple layers as discussed hereinbelow with respect to fig7 to provide both in plane and.