Welcome to Mach One Audio. We are an audio and event production company located in the heart of the Connecticut River Valley and Sunapee Regions of New Hampshire and Vermont. Our wonderful staff are always available to consult and help select the perfect assortment of equipment needed for your production. Whether it’s a corporate event, church event, festival, or music event, indoor or outdoor, we are here to cover every detail. With decades of experience, our aim is to give you the best service and value, and help make your event a standout success.