so what amplifiers should i use and where can i get some circuit schematics
hope i have not made u crazy by asking questions haphazardly!!
All questions are good If you want to drive all the transducers with the same signal, that gets easier. What are your transducers like?? What power will they handle? Do you expect to pulse them on and off rapidly, or run CW (Continuous wave)?? Most echo-ranging transducers are pulsed.Look at high-power systems like "fish finders" and "Depth Gauges".. First part of Engineering is finding the right questions