The SL 350 slave amplifier is designed for powering additional zones or for providing extra power within existing installations and boasts a number of useful features and solid performance. 350Wrms 19'' rack mount amplifier in 3U chassis 70V 100V and 4-16 loudspeaker outputs Balanced XLR line input Unbalanced 6.35mm jack line input Balanced XLR line output Unbalanced 6.35mm jack line output Temperature clip and short circuit protection Power signal clip protection and temperature LEDs GNDlift switch to prevent ground loop hum Fan cooled 24V DC and 240V AC inputs for maximum flexibility