I' ve still got my PSE 2050Z that I bought new about ten years ago. I think the IBO was just under 300 FPS. It is quiet for a bow that old, but sounds like a .22 next to either of my new bows. I' ll tell you one thing though. I can go pick it up right now and it will shoot a bullet hole through paper and stack arrows like who' d a thunk it. I killed a deer with it the last day of the season last year and it performed flawlessly as always. It is now and probably always will be my back up bow. I won' t hesitate to take it to the deer stand.

As TFOX said, the newer bows haven' t gotten a whole lot faster, but they are definitely quieter and more shock free.