Armani Milano stepped up in Game 5 and rallied past Avellino (92-76) to win the series (3-2) and qualify for the Italian League semi-finals.
Armani led by eight at halftime (47-39) and never looked back, as Avellino could not turn things around and win the game (68-54, 90-71).
Four players scored in double figures for the winners, with James Nunnally leading the way with a game-high 25 points. Demonte Harper and Demetris Nichols scored 15 points apiece for the losing squad.
Armani will face Dinamo Sassari in the semi-finals.