The idea is I have been building a device, based on SigmaDSP, which produces pulses of an ultrasonic sound. The signal is wide in terms of its spectrum: from about 22khz to 92khz. Could you please advise me some good electrostatic transducer? I am currently using Sencomp 7000 (senscomp dot com), but perhaps there is some better alternative? The idea is Sencomp ones are not suitable for really high voltages and also have pretty high level of intermodulation distortions.