Ermal Krasniqi gave the hosts the lead inside the opening 13 minutes, with Rayan Lutin providing the assist.
Orban doubled the advantage 10 minutes before the break, finding the net with a brilliant left-footed finish.
The Nigerian has now scored nine goals and provided four assists in 10 appearances across all competitions for Amedspor this season.
Ballet also scored Amedspor’s fourth and fifth goal of the game.
He was, however, sent off in stoppage time for violent conduct.
Amedspor, who extended their unbeaten run to eight games, remain in second position just two points behind leaders Galatasaray.
