bids are invited for television - diagonal size55type60hz e-led bluresolution3840*2160 ( 4k uhd ) brightness ( typ. ) 250 nitcontrast ratio4700:1viewing angle ( h / v ) 178:178hdr10+yesaudiodolby digital plusyessound output ( rms ) 20wspeaker type2ch ( 10w+10w ) bluetooth audioyesinputvideohdmi ( 2 ) usbusb ( 1 ) , television 86 inch or higher - diagonal size86typeedge led bluresolution 3840*2160 ( 4k uhd ) pixel pitch ( mm ) 0.4875 x 0.4875active display area ( mm ) 1872.0 ( h ) x 1053.01 ( v ) brightness ( typ. ) 350 nitdisplaydynamic c / rmegasoundspeaker typebuilt in speaker ( 10w + 10w ) inputrgbdvi-dvideohdmi 2.0 ( 2 ) usbusb ( 1 ) , desktop computer set - computer memory size-8gbcpu processor- intel i3cpu speed- 3.3 ghzscreen size- 21 inchhard disk description- mechanical hard drivehard disk size- 1tboperating system- windows 10 pro , television wall mount accessories - television wall mount accessories compatible with television model , central mixer amplifier - line output 1- 17.5v dc / 3a max.; -34dbv ( 20mv ) line output 2- 17.5v dc / 3a max.; -34dbv ( 20mv ) power output- 50w rms at 2% thd, 90w max.inputs- 3×mic 0.65mv / 4.7k?, 1×aux 100mv / 470k?frequency response- 60-14, 000hz ( ± 3db ) s / n ratio- > 60dbtone controls- bass: -10db at 100hz, treble: -10db at 10khzpreamp output- 200mv / 600?line output- 1v / 1k?send output- 200mv / 600?return input- 200mv / 10k?speaker output- 4?, 8?, 16?, 70v & 100vpower requirement- ac: 220-240v, 50 / 60hz, dc: 24v ( 2×12v car battery ) power consumption- 250vaprotections- ac fuse 1×3 amp , dc fuse 2×10 amp.dimensions- w483 × h110× d325 mmweight- 10.50kg , chairman unit microphone - microphone- -63dbv / μbar ( 7.5mv / pa ) current consumption- < 50ma max.mic auto switch-off time- 75 seconds approx.input- lineoutput- line, headphonespeaker- max input 300mwcontrols- priority switch, talk switch, speaker volume control, headphone volume controldimensions- w118 × h70 × d160 mmweight- 1.05 kg ( w / o cable ) accessories- foam windshield, 2.5m interconnecting cable , delegate unit microphone - microphone- -63dbv / μbar ( 7.5mv / pa ) current consumption- < 50ma max.mic auto switch-off time- 75 seconds approx.input- lineoutput- line, headphonespeaker- max input 300mwcontrols- talk switch, speaker volume control, headphone volume controldimensions- w118 × h70 × d160 mmweight- 1.05 kg ( w / o cable ) accessories- foam windshield, 2.5m interconnecting cable , pa mixer amplifier - power output- 160w max., 120w rms at 10% thd, 105w rms at 5% thd, 95w rms at 2% thdoutput regulation- = 2 db, no load to full load at 1khzinput channels0 5 × mic 0.65mv / 4.7k?, 2 × aux 100mv / 470 k?frequency response0 50-15, 000hz ±3dbsignal to noise ratio0 60dbtone controls- bass: -10db at 100hz, treble: -10db at 10khzoutputs- preamp 200mv / 600?, line 1v / 1k?speaker outputs- 4?, 8?, 16?, 70v & 100vpower supply- dc: 12v ( 12v car battery ) ac: 220-240v 50 / 60hzpower consumption- dc: 5.5a ac: 250vadimensions- w420 × h135 × d295 mmweight- 11.3kg , pa speakers - input power- 10w rms, 15w max.power taps- 10w, 10 / 7.5 / 5wimpedance / voltage- 8?, 100vfrequency response- 150-10, 000hzspl at 1khz- 92db / 1w / 1mspeakers- 2 × 152.4 mm ( 6” ) × 101.6 mm ( 4” ) dimensions- w165 × h455 × d145 mmweight- 2.83kg, 2.85kg , speaker cable - distance ( length ) - 500 metersize ( awg ) - 18width- 5.45 millimeterconductors material- bare copperinsulation material- pvcthickness- 0.6 millimetersize ( square mm ) - 0.75number of conductors- 2power loss in %- 10height- 2.5 millimeterconductor resistance ( ohms / km 20 c ) ( max ) - 26 total quantity : 1