Nady XA-900 Pro Stereo Power Amp 400W/ch @ 2 ohms, 300W @ 4 ohms, 200W @ 8 ohms, 900W bridged mono @ 4 ohms Detent volume controls Parallel balanced XLR and 1/4" TRS inputs Stereo, parallel-input, or bridged mono operating modes Binding post/banana plug outputs Ground lift switch 2 dual-speed cooling fans Soft-start turn on Noise-free on/off Built-in DC offset Thermal overload protection Short circuit and speaker protection DC servo operation Digital current limiter Power Expect purely professional performance from the Nady XA-900 Pro Stereo Power Amp With detent volume controls; parallel balanced XLR and 1/4" TRS inputs; stereo, parallel input, or bridged mono operating modes; binding post outs; and ground lift switch 400W/ch @ 2 ohms, 300W @ 4 ohms, 200W @ 8 ohms, 900W bridged mono @ 4 ohms Safety features include 2 dual-speed cooling fans, soft-start turn on, noise-free on/off, built-in DC offset, independent DC and thermal overload protection on each channel, short circuit and speaker protection, DC servo operation, built-in digital current limiter; plus power on, clip, signal, and protect LED indicators for each channel