Harman/kardon HK 490I is a 30-watt AV receiver. Low negative feedback in this harman/kardon receiver provides low dynamic distortion and exceptional transient response. A wide frequency response of 0.2 Hz to 150 kHz is used to maintain phase linearity. Technical specifications of the tuner built into this harman/kardon receiver include a stereo separation of 50 dB, alternate channel selectivity of 70 dB, and quiet sensitivity of 50 dB. In addition, the tuner is engineered to provide low noise, low distortion, and wide stereo separation. Users can preset up to eight AM and eight FM stations on the harman/kardon HK 490I. Moreover, quartz-locked tuning eliminates mistuning and drifting in order to provide optimum sound quality on this harman/kardon receiver. Receiver measures 17.4 inches in width by 5.25 inches in height by 14.4 inches in depth and weighs 18 lbs.