A number of loudspeakers can do that, however they don't tend to be cheap. And in cases of infrasonic reproduction, they aren't small either. What kind of sound pressure levels do you need? What other criteria do you have, ie. linearity, frequency range, physical manageability, etc. If this is for some kind of scientific or industrial project, you will also need a way of measuring what the loudspeakers are doing, so you will need very wide-range and accurate microphones, SPL calibrators, high-end sound interfaces for computers, and equipment of that type.
