Subwoofer from Alto Professional belonging to the Black series
Alto Professional introduces at NAMM the Black Series loudspeakers, a workhorse line of three active 2-way loudspeakers and two subwoofers.
![[NAMM] Alto Professional Black Series Loudspeakers](https://img.audiofanzine.com/img/product/normal/1/7/174171.jpg?fm=pjpg&w=334&h=243&fit=contain&s=219df967178903e80ee3c99a06877b04)