How do you choose from 6 Ultrasound Amps? What is the best place to find all Ultrasound amplifier reviews? Retrevo helps you find top-rated Ultrasound amps, by analyzing price, features and Ultrasound amplifier reviews. Our goal is to find you the best bang for the buck Ultrasound amplifier. Other top brands of amps are: Pyle, Behringer, Fishman, Aphex, Fender.