Korpa 
The JBL PRX512M is a 12" 2-way stage monitor or front-of-house self-powered speaker system with both a 400W low-frequency and a 100W high-frequency Crown Class D amplifier. It has a DSP-controlled input section with selectable EQ.
The cabinet holds a 12" differential drive woofer and a 1.5" annular polymer diaphragm compression driver. It is a DuraFlex-covered 16/18mm plywood enclosure, with a steel foam backed grille, dual 35mm pole sockets, nonskid rubber feet. Weighs only 40 lbs.!
