Original box not included. The LX amplifiers deliver ample power in a compact package.With individual amplifier cards, each channel drives an impressive 200 watts into 8 ohms, and is stable into 2 ohms. Bridgeable architecture makes it possible to drive even higher-power outputs, combining up to four 200-watt channels into two imposing 400-watt channels. Each 200-watt channel is capable of driving loudspeaker impedances of 2 ohms and above, while each 400-watt channel can drive impedances of 4 ohms and above. Massive toroidal power transformers and several oversized capacitors allow the amplifiers to retain ample power reserves even when all channels are delivering maximum output.