on my Gulfstream 230 I have an Airmar SS-264,200 mgz,20 degree {Wide} hooked up to a Furuno FCV-620, and I'm very happy with this setup.
We fish the Sound as were docked in Cos Cob CT {Mianus River}, We can read bottom at WOT with this setup !
Even though, the FCV-620 isn't a 1 kw rated...