Design Reference Manual: http://www.jblpro.com/pub/technote/ssdm_99.pdfBasic Sound Reinforcement SystemThis is a very basic sound system. PRX500 series speakers allow the direct connection of sound sources,without the need for extra mixer or pre-amplifier. The XLR or 1/4 inch input jack provides versatility and cablingoptions and the mic/line input sensitivity selector switch optimizes the speaker gain for the input source.APPLICATION EXAMPLESPOWERLINE SELECTAC LINE INPUT100V~ -240V~50/60 Hz 5A 600WMIC LEVELLINEFLATBOOSTOUTINOVERLOADSIGNALllINPUTEQDesigned Engineered and Assembled in U.S.A.JBL PROFESSIONALNorthridge, CA. USAEquipped with Differential Drive ®Transducer Technology U S. PATENT 5,748,760Other U.S. and foreign patents pending+4dB10dBPRX515CSA Certification applies toAmplifier Module OnlyCSA Certificated to operate at 120V~ in CanadaN 1 0 8POWERLINE SELECTAC LINE INPUT100V~ -240V~50/60 Hz 5A 600WMIC LEVELLINEFLATBOOSTOUTINOVERLOADSIGNALllINPUTEQDesigned Engineered and Assembled in U.S.A.JBL PROFESSIONALNorthridge, CA. USAEquipped with Differential Drive ®Transducer Technology U S. PATENT 5,748,760Other U.S. and foreign patents pending+4dB10dBPRX515CSA Certification applies toAmplifier Module OnlyCSA Certificated to operate at 120V~ in CanadaN 1 0 8MP3MP3PRX51525