The U 240 W power amplifier uses a 2U high enclosure u en

 54 ￣ 16 certified u 70 V / 100 V and 8 ohm output u two input u with priority switching function 100 V input LBB 1935 / 20 is a powerful 240 W power amplifier using 2U high 19 Inch chassis, can be installed in the rack, can also be used on the desktop. LED indicators on the front panel show the status of the amplifier: power supply, audio output level and a variety of monitored functions. This high-performance device can meet a variety of public broadcasting requirements at a very low cost. Basic function reliability amplifier has overload and short circuit protection functions. Temperature controlled fan can ensure high reliability at high power output and low noise at low power output. When the internal temperature reaches the critical limit due to poor ventilation or overload, the overheat protection circuit will shut down the power amplifier assembly and activate the LED indicator on the front panel. The device can use either AC power supply or 24 V emergency battery power supply, and can automatically switch between the two. For emergency evacuation applications, the following functions are monitored: AC power status, battery power status, pilot tone status, and amplifier operation status. The front panel LED indicator is used to indicate the status of the monitored function. For conventional public broadcasting occasions, the user can turn off the LED indicator for pilot tone monitoring and battery status. Each monitored function is equipped with a fault protection (power on close) relay. These relays are always active regardless of the switch status on the rear panel. The input amplifier is equipped with two balanced inputs with priority control, and each input has a loop device. This makes it easy to connect to remote systems that need priority control. In addition, an additional 100 V line input is provided to connect the amplifier to the 100 V speaker line, providing greater power for remote locations. The gain or level control is located at the back of the device to avoid unexpected setting changes. The instrument with LED indicator bar can display the output level. The output amplifier is equipped with 70 V and 100 V outputs for constant voltage speaker systems and a low resistance output for 8 ohm speaker loads. The amplifier has two separate priority controlled 100 V outputs, one for areas that only need to be broadcast through the priority input, and the other for areas that do not listen to the broadcast through the priority input. Front of controller and indicator light · meter (LED indicator light indicates - 20, - 6, 0 dB and power on) · battery operated indicator light · back of overheat indicator light · level control input 1 · level control input 2 · power button · back of power switch interconnection · priority line input 1 (XLR / balance) · line loop 1 (XLR / balance) · program line input 2 (XLR / balanced) · line looping 2 (XLR / balanced) · speaker output terminals with priority control, 24 VDC power supply terminals, three speaker direct output terminals, two 100 V auxiliary input terminals, input 2 enable control terminal, input 1 priority control terminal, grounding screw terminal, power socket certificate and approved safety, in accordance with en 60065 standard immunity Comply with en 50130 ￣ 4 standard radiation meet en 55103-1 standard emergency meet en 54 ￣ 16 regional certification European CE cpd cpd Poland cnbop accessories quantity assembly 1 LBB 1935 / 20 power amplifier 1 power cord 1 19 inch mounting bracket Kit 1 safety instructions 1 cable technical specification with XLR connector electrical mains voltage 230 VAC, ± 10%, 50 / 60 Hz Inrush current 9 a maximum power consumption 760 VA battery power supply voltage 24 VDC + 15% / - 15% maximum current 11 a performance output power (RMS / max) 240 / 360 w standby power supply power reduction - 1 dB frequency response 50 Hz to 20 kHz (+ 1 / − 3 dB, − 10 dB reference rated output) distortion < 1% (rated output), 1 kHz signal to noise ratio (flat at maximum volume) > 90 dB Line in 2 x connector 3 pin XLR, balanced sensitivity 1 V impedance 20 K Ω common mode rejection ratio > 25 dB (50 Hz to 20 kHz) gain 40 dB 100 V input connector screw, balanced sensitivity 100 V impedance 330 K ohm line loop output 2 x connector 3 pin XLR rated level 1 V impedance directly connected to line in speaker output 3 x connector Screw, floating direct output 100 V, 70 V, 8 ohm priority only (from input 1) 100 V or 70 V, internal optional music only (non priority) 100 V or 70 V, internal optional power consumption AC power supply operation maximum power 451 W - 3dB 340 W - 6dB 244 w pilot tone * 55 w idle 16 w 24 V operation maximum power 12.1 a (290 w) - 3 dB 11.4 a (274 w) - 6 dB 8.1 a (194 w) Pilot * 1.7 A (41 w) idle 0.3 A (7 W) * 20 kHz - 20dB, maximum speaker load

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042