bids are invited for procurement of items for refurbishing of cmos -1 wireless conferencing controller wireless conferencing controller acts like an recevier and it should be capable of supporting the capacity of min. 100 units.the unit shall have connection with external devices with dante protocol.min frequency response 80hz to 16khz dynamic range above 80db. 1 nos henrich/shure/ jts 2 wireless delegate unit mic wireless delegate unit touch type with display of 4.3, frequency response 80hz-16khz. snr value above 78db(a). thd below 0.03% and dynamic range above 80db. 23 set henrich/shure/ jts 3 wireless chairman unit mic wireless chairman unit touch type with display of 4.3, frequency response 80hz-16khz. snr value above 78db(a). thd below 0.03% and dynamic range above 80db 1 nos henrich/shure/ jts 4 charger unit for microphone battery charger unit for microphone battery with capacity of charging 10 unit of microphone simultaneously. 1 nos henrich/shure/ jts 5 poe access point poe access point for enchancing the signal strength of the wireless delegate mics 1 nos henrich/shure/ jts 6 120w rm dual channel class -d amplifier 120w rms dual channel class-d digital power amplifier min. features: 120w rms per channel, amplifier output 100v, short circuit, power, tempreature, overload protection, auto cooling fans. thd <0.1%, frequency response 20hz -20khz, ac & dc fuse, snr >80db. 1 nos henrich/ audac/ dynatech 7 8+2 two way mount speaker 8+2 two-way wall mount speaker r with following features:- both 100v and 8 ohm output selector, power taps 60w, 30w, 15w, 7.5w 200v/70voutput, spl 1w/1m = 93db , spl@full power = 115 db, frequency response 80 hz - 22 khz, built-in 8+ 2 two ways speaker driver 4 nos henrich/ audac/ magnat 8 audio dsp sound 8-channel phantom power microphone/line input, 8- channel circuit output; loudspeaker management system frequency response 20hz ~ 20khz, seperate mute control each channel,cmrr>80db, 8 independent parametric eq, adjustable gain range up to 20db, with, rs232 and internet to connect pc,high-speed processing dsp chip, audio processing and special signal extension processing total quantity : 40