Abstract: Elongated electrically nonconducting transducer preforms are made from a ff resin. The preforms have grooves in their upper and lower surfaces. Transducer elements may be formed from stacked preforms whereby grooves in their upper and lower surfaces form compartments between adjoining stacked preforms. PZT rods are disposed in the grooves disposed on the upper surface of each stacked preform, and a soft resin surrrounds the rods and fills the compartment. The method for making the transducer assembly includes the steps of loading by gravity the rods into the upper grooves of the preforms; stacking the loaded preforms so that upper grooves in the lower preform communicate with lower grooves in the upper preform, thus forming cavities; flowing a soft resin around the rods; and curing the soft resin.