Niles TVA-50 - Amplifier [Electronics] Digital amplifier design provides outstanding performance in a small discrete package 50 watts per channel RMS into 8 ohms, .05% THD (both channels driven) 75 watts per channel RMS into 4 ohms, .05% THD (both channels driven) DC, short-circuit, and overload protection with automatic reset Accommodates two pair of speakers via removable screwless connectors