BOSCH LBB1938 Power Amplifier Spces: Voltage: 230VAC, ±10%, 50/60 Hz Inrush current :19 A Max power consumption: 2200 VA Battery power supply Voltage: 24 VDC, 20% / -10% Current max: 30 A Performance Output power (rms/maximum): 480 W / 720 W Power reduction on backup power: -1 dB Mains power supply Frequency response: 50 Hz to 20 kHz ( 1/‑3 dB @ ‑10 dB ref. rated output) Distortion: <1% @ rated output power, 1 kHz S/N (flat at max volume): >90 dB Line inputs: 2 x Connector: 3-pin XLR, balanced Sensitivity: 1 V Impedance: 20 kohm CMRR: >25 dB (50 Hz to 20 kHz) Gain: 40 dB 100 V input: Connector Screw, unbalanced Sensitivity: 100 V Impedance: 330 kohm Line loop-through output 2 x Connector: 3-pin XLR Nominal level: 1 V Impedance: Direct connection to line input Loudspeaker outputs: 3 x Connector: Screw, floating Direct output: 100 V, 70 V, 8 ohm Priority only (from input 1): 100V or 70 V internally selectable Music (non-priority) only: 100V or 70 V internally selectable Power consumption Max power: 990 W -3dB 715 W -6dB 510 W Pilot tone* 110 W Idle 25 W 24 VDC operation Max power 32 A (770 W) -3 dB: 26 A (625 W) -6 dB: 18 A (430 W) Pilot tone*: 3.8 A (91 W) Idle: 0.7 A (17 W) * 20 kHz -20dB with maximum loudspeaker load Mechanical Dimensions (H x W x D): 145 x 430 x 370 mm / (19″ wide, 3U high, with feet) Weight: Approx. 25 kg Mounting: Standalone, 19”rack Color: Charcoal # Check All PA Amplifiers # Check Latest Microphone Models