Optimized for speech frequencies with unmatched intelligibility, capable of high-quality musical reproduction and powerful enough to manage highly complex loop systems, Ampetronic D Series hearing loop drivers provide: High power solutions for use in structures containing high quantities of metal, Class D drivers offering 60 percent increase in energy efficiency and low heat dissipation, Remote browser interface with real-time monitoring and periodical reporting options, Fully networkable for easy integration into existing IT infrastructure. Dante options available.