Apparatus and method for reduction of triple transit signals generated by the interaction between acoustic surface waves and transducer elements in acoustic surface wave devices. Input transducers are positioned such that the transit time between a first input transducer and an output transducer is delayed by a quarter of a wavelength relative to the transit time between a second input transducer and the output transducer. The input signal to the second input transducer is delayed externally by a length of time equivalent to a quarter of a wavelength. The output transducer signals can therefore be combined to produce an enhanced output signal. Acoustic surface waves generated at an output transducer and returned to the output transducer after interaction with the first input transducer will be retarded two quarter wave lengths (one for each transit) as compared to acoustic surface simultaneously generated at an output transducer and returned to the output transducer after interaction with the second input transducer. Because of the phase relationship, the signals generated at the output transducers as a result of acoustic wave interactions with the two input transducers will cancel when combined.