QSC ISA300Ti Power Amplifier 2 Channel Rack Mount Stereo 300 Watts per CH 70 Volt ISA Series Rear panel gain controls for tamper resistant operation with 2 dB detents for quick and repeatable settings. XLR and detachable Euro style input connectors. DataPort V2 for use with DPV2-compatible signal processing accessories XC-3, SF-3, LF-3 and DSP-3DSP-4 with external power supply. Independent defeatable clip limiters for reduced distortion. Front panel indicators include power, signal, and clip.