To JD7.62's comment, it's not exactly "hard" to land many species. It certainly doesn't take a Zee or a Staal to land a king mackerel or a cobia, but you still see many people using those reels for those species. Nothing wrong with using what you're comfortable with.
To the OP, I've got two "favorite" setups for bull redfish.
My "go-to" spinning setup is a Shimano Stradic Ci4+ 4000FA loaded w/ 30 lb. Power Pro Super Slick. I have this reel paired with a 7' 4'' G. Loomis Pro Green. Perfect for working smaller baits & topwaters for finicky bulls.
My "go-to" baitcasting setup is an Abu Garcia Revo Toro NaCl50 loaded w/ 40 lb. Power Pro. This reel is usually on an 8' St. Croix Legend Tournament Musky Series rod. This is my favorite setup to use when throwing bigger plastics & heavy spoons at bulls.
If you'd like to have an excellent quality setup that won't cost quite as much, look into a Shimano Stradic FJ3000 (or a 4000, it's all personal preference) & a 7' 6'' Hurricane Calico Jack rod. I use this combo almost daily as well & it's very comfortable to fish with - love this setup.
Whatever setup you do decide to get, I'd suggest you do yourself a favor & replace your stock drag washers with Carbontex washers. If you fish for big redfish often, you WILL burn up your stock drag washers eventually, trust me.
Good luck with whatever setup you end up choosing, there's a lot of great gear out there man!