YORKVILLE AP4020 Owner's Manual

Also see for ap4020 ys4020: Service manual Service manual

Contents

5Frequency Response: +/- 1dB, 20 Hz to 20 KHzHum and Noise: -103 dB below max output RMS voltage, unweightedTHD (1 khz, 4–Ohms): <0.01%THD(20Hz – 20kHz, 4–Ohms): <0.1%High Pass Filter: 40Hz, 12 dB/octaveSlew Rate: Power amp section: 25 V/uS, 50 V/uS in bridged modeDamping Factor: > 600, 20 Hz - 400 Hz, into 8 ohms.Crosstalk: -75 dB below full output at 1khz, -60 dB below full output(20 Hz - 20 KHz).Input Impedance: 20 Kohms balanced, 10 Kohms unbalancedInput Sensitivity: 1.4 VRMS sine wave.(AP4020: 36 dB, AP4040: 39 dB gain).Rejection: CMRR@60Hz: minimum 48dB, typical 56dBControls: Rotary GAIN controls, MONO/STEREO/BRIDGE, FILTER,and LIMITER switches.Displays: 2x CLIP, 2x ACTIVITY, PROTECT, POWER ON. (LEDS)Input Connectors: 2 x XLR, 2 x 1/4 inch phone (TRS)Output Connectors: 2 x Binding Post, 3 x Speakon™ SP-4Turn On/Off transients: < 15 milliwatt / seconds, 0.5 Wpk. (1s on delay)Power Consumption: Typ 1130, Max 1800 WattsTransformer: ToroidalProtection: Fully protected: DC, LOAD and THERMALCooling: Aluminum Heatsinks with DC servo–controlled fan (in front, out rear)Size: 44 cm x 48 cm x 9 cm (DWH)17.5 in x 19 in x 3.5 in (DWH) (front panel to binding posts)2 Rack SpacesWeight: 43.5 pounds. 19.8 KilogramsSPECIFICATIONS