The PF Series, Class D digital amplifiers lightweight switching power supplies are over 70% efficient at full output. Their high efficiency reducing AC power requirements and eliminating the need for a cooling fan. The PF Series, Intelligent Digital Amplifiers, drive loudspeakers to unprecedented levels of accuracy and performance. The PF Amplifiers combine comprehensive driver protection, parametric equalization and light, cool Class D power amplification into a single compact unit. Whenever you are ready for Ethernet audio networking, your Renkus-Heinz loudspeakers are, too; just replace the connector plate or the PF series amplifier with a RHAON empowered amplifier equipped for connection to the Renkus-Heinz Audio Operations Network. RHAON empowers you with full control over digital audio distribution, speaker-specific DSP and control/monitoring - all using standard Ethernet hardware and cable.