S W R SM-400S Professional Series, capable of Stereo/Bi-amp/or Mono. No Speaker cord. Pics show Uncovered to show wiring quality. Basically, two separate 250-watt amps in one Rack-Mount Unit. You can Bridge the two amps together to form a 550-watt Mono speaker output. The amp is solid state but uses a Tube in the preamp section for a fuller sound. Replaced the tube recently. I never pickup for numbers that are not on my contact list, so text me first so I can call you back, Thanx.