Autotek Super Sport AT Series AT1000 1000 Maxx Watt Power A/B Class Two-Channel Amplifier (Black) 2 x 250 W at 4 Ohms, 2 x 500 W at 2 Ohms, 1 x 1000 W at 4 Ohms Maxx Power Preamp level RCA inputs, high level inputs and daisy-chain line outputs Mono/stereo switch High-pass/low-pass/full-pass frequency selections Diagnostic LED power protection system warns and detects