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Power calculations

Batteries. UPS. Power calculations. Generator. Power consumption. Changed !!. Amplifier spec’s. in manual 3.0. LBB 4421/00, 1x 500W Power amplifier. Mode 48V DC 120/230V AC Stand-by 20W 28W Idle, no pilot tone 28W 37W Idle, with pilot tone 15V 46W 56W

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Power calculations

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  1. Batteries UPS Power calculations Generator

  2. Power consumption Changed !! Amplifier spec’s in manual 3.0 LBB 4421/00, 1x 500W Power amplifier Mode48V DC120/230V AC Stand-by 20W 28W Idle, no pilot tone 28W 37W Idle, with pilot tone 15V 46W 56W Pmax –6dB, with pilot tone 210W 231W Pmax –3dB, with pilot tone 380W 404W Pmax, with pilot tone 600W 750W Conditions: Amplifier at full load => max. number of loudspeakers connected

  3. Power consumption LBB 4421/00, 1x 500W Power amplifier Pmax with pilot tone 750W R load = 20 Ohm 100V RMS 140V Top 100V RMS (140V Top) Amplifier at full power => Test tone 1kHz sinus => Delivering 500W in load => Only for test purposes Heat

  4. Power consumption LBB 4421/00, 1x 500W Power amplifier Pmax –3dB, with pilot tone 404W R load = 20 Ohm 70V RMS 99V Top 70V RMS (99V Top) Amplifier at half power => Delivering 250W in load => During ALARM signals Heat

  5. Power consumption LBB 4421/00, 1x 500W Power amplifier Pmax –6dB, with pilot tone 231W R load = 20 Ohm 40 - 50V RMS 140V Top 40-50V RMS (140V Top) Amplifier at quarter power => Delivering 125W in load => During Speech Heat

  6. 12 sec 5 sec 12 sec 5 sec 404W 231W 404W 231W Power consumption LBB 4421/00, 1x 500W Power amplifier R load = 20 Ohm Average power consumption running on MAINS: 12 x 404W + 5 x 231W / 17 = 353W Average power to the LS: 12 x 250W + 5 x 125W / 17 = 214W Average heat production: 353 – 214 = 139W

  7. 12 sec 5 sec 12 sec 5 sec 380W 210W 380W 210W Power consumption LBB 4421/00, 1x 500W Power amplifier R load = 20 Ohm Average power consumption running on 48V BATTERIES: 12 x 380W + 5 x 210W / 17 = 330W Average power to the LS: 12 x 250W + 5 x 125W / 17 = 214W Average heat production: 330 – 214 =116W

  8. Power consumption ?

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