Found on the JBL Website:
“The new powered full-size VT4889ADP system is full-bodied and dynamic. Having a powered speaker system for this production saves us both setup time and backstage space. Since putting this new audio package on the tour, I can’t imagine using any other system to do this show.”
- -Eric Stahlhammer, sound designer, “Love, Janis” (touring musical theater production, USA, 2008)
http://www2.jblpro.com/products/tour/Vertec/prouser/prousercom.html