70V, 100V, or 8? Amplifier Output Three inputs (each with a front panel volume control) and a single output channel Ideal for Paging, Background Music, and Music-On-Hold Applications Balanced Mic/Line Input, Telco Input, Zone 2, and Dual RCA Stereo Music Inputs Priority Muting by VOX or External Switch Bass and Treble Controls Secondary Zone 2 Output 1 W & 600? / MOH Universal AC Power Supply for Use 110V - 240V Systems Signal Presence LED Indicators Optional rack mount kit AAGRMK2