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U 2 u 240 W power amplifier used high shell u EN 54 ? 16 certification u 70 V / 100 V and 8 ohm output u two way with priority the switching function of the input u used to perform over 100 V speaker circuit affiliate operating 1935/20 100 V input LBB is a powerful 240 W power amplifier, use 2 u 19 inches tall case, can be installed in the rack, also can use on the surface of the table. The LED indicator on the front panel shows the state of the amplifier: power supply, audio output levels, and a variety of monitored functions. This high performance device can meet all kinds of public broadcasting requirements, and the cost is very low. Basic function reliability amplifier with overload and short circuit protection. The temperature controlled fan can guarantee high reliability when high power output and low noise when low power output. When the internal temperature reaches the critical limit due to poor ventilation or overload, the overheat protection circuit will turn off the power amplifier and activate the LED indicator light on the front panel. The device can use either ac power or a 24v emergency standby pool power and can switch between the two automatically. For emergency evacuation applications, the following functions are monitored: ac power status, battery power status, pilot tone status and amplifier operation status. The LED indicator on the front panel is used to indicate the status of the monitored function. For general public broadcast, the user can turn off the LED indicator light used to indicate pilot sound monitoring and battery status. Each monitored function is equipped with a fail-safe (electrically-closed) relay. These relays are always active regardless of the switch status on the back panel. The input amplifier is equipped with a balanced input with two channel priority control, each with a loop device. This makes it easy to connect to remote systems that require priority control. In addition, an additional 100 V circuit input is provided to connect the amplifier to the 100 V speaker circuit, thus providing greater power for the remote location. Gain or level control is located at the back of the device to avoid unexpected Settings changes. The meter equipped with LED indicator can display output level. The output amplifier is equipped with 70v and 100v output for the constant pressure loudspeaker system. Low resistance output is also provided for 8 ohm speaker loads. Amplifier has two separate priority control 100 V output, all the way to only need to pass the first enter the area of broadcasting, the other for not all the way through the priority of the radio area input. Controller and the light is positive, the instrument (LED light indicator - 20, to 6, 0 dB and power open), battery operation light, overheat indicator lights on the back, control input level 1, level 2, the power button, the power switch control input interconnection, on the back line input 1 priority (XLR/balance), a line on the 1 (XLR/balance), 2 (XLR/balance), line input line on the 2 (XLR/balance), the speaker output terminals of priority control, 24 VDC power supply terminals, three speakers directly output terminals, two 100 V auxiliary input terminal, input 2 enable control terminal, enter 1 priority control terminal, grounding screw terminals, power socket and recognized safety certificate conform to the EN 60065 standard radiation immunity in accordance with EN 50130 ? 4 standard EN 55103-1 standard emergency with EN 54 ? 16 certification European CE standard area CPD CPD Poland CNBOP attachments Quantity component 1 LBB 1935/20 power amplifier 1 power cord 1 19 inch mount bracket kit 1 safety specification 1 cable technical specification with XLR connector electric city power supply voltage 230 VAC, plus or minus 10% 50/60 Hz into 9 A maximum 760 VA battery power voltage 24 VDC power consumption 15% + / - 15% maximum current 11 A performance output power (RMS/maximum) 240/360 W standby power is reduced - 1 dB frequency response of 50 Hz and 20 kHz (10 dB + 1/3 dB ? and ? reference rated output) distortion < 1% (rated output power), 1 kHz signal to noise ratio (maximum volume ping temple) > 90 dB line input 2 x 3 needle XLR connectors, balanced impedance sensitivity 1 V 20000 common mode rejection ratio > 25 dB (50 Hz and 20 kHz) 40 dB gain 100 V input connector screw, Balance sensitivity 100 V output impedance euro 330000 circuit loop 2 x 3 needle XLR connectors connected directly to the line input level 1 V rated impedance 3 x in the speaker output connector screw, floating direct output 100 V, 70 V, 8 ohm priority (1) from the input only 100 V or 70 V, internal optional music only (non-priority) 100 V or 70 V, Internal optional power ac power operation maximum power 340 W - 451 W - 3 dB 6 dB idle 16 pilot tones * 55 W, 244 W W 24 V 12.1 A maximum power operation (290 W) - 3 dB (274 W) - 6 dB with 11.4 A 8.1 A (194 W) * 1.7 A pilot notes (W) 41 spare 0.3 A (7 W) * 20 kHz - 20 dB, the loudspeaker loads