The D15 is a portable, 15-inch, two-way speaker system designed specifically for live performance stage monitoring applications. The JD15 series delivers the performance and prestige that STI is known for at an affordable price point. To meet these conflicting design goals, we looked at every element of the speaker system design. We kept everything that makes a speaker perform and sound its best and we eliminated things that don't. With performance, value and popular price points, we are going to be building a lot of D15 speakers. This means we can apply efficient, high-volume production methods and purchase materials at the lowest cost. That's how D15 delivers unprecedented