The XTi Series of Crown amplifiers are professional tools designed and built for portable PA applications. The series includes 3 models which are identical except for output power: XTI 1000 2000 and 4000. All are rugged and lightweight and offer unmatched value in their class. XTi-Series amplifiers feature an LCD screen with DSP speaker presets for crossover frequencies EQ limiting delay and a subharmonic synthesizer. Other features include a switch-mode universal power supply useful fu