bids are invited for supply and installation of conference system in committee meeting room no 04 lifiers - supply, installation, testing and commissioning of 4x125w class-d lifier with 4 independent channels and can provide automatic re-settable over current, overload, overheating, overvoltage, under-voltage and dc protection , speakers - supply, installation, testing and commissioning of 20w ceiling speaker with max spl1m/1w 90db. frequency response of 100hz-20khz with a dispersion angle of 120 deg. the speaker should have tapings at 20w/10w (with require mounting arrangement) , speakers - supply, installation, testing and commissioning of 20w column speaker with max spl1m/1w 94db. frequency response of 300hz-15khz with a dispersion angle of 160 deg. the speaker should have tapings at 20 w /10 w / 5 w / 2.5 w (with require mounting arrangement) , extension cable - supply, installation, testing and commissioning of extension cable 10 mtrs. for connection of additional length other than provided in delegate /chairman unit , microphone cable - supply and fixing of 18 awg (24/0.20mm) x 2 core atc copper conductor, pe insulated, core twisted in a circular form, inner sheathed with moisture proof polymer, braid shielded (80%) with atc copper, outer jacketed with matt finish rugged flexible pvc. , audio cable - supply and fixing of pvc insulated copper flexible speaker wire twin frls 1100 volts as per of approved make. , wall mounting rack - supply, installation testing and commissioning of wall mounting rack, for computer switches complete 12u cabinet wall mounting with 6 point 5 . socket power supply strip and fan, cable manager, tray as per site requirement , mixer - supply, installation, testing and commissioning of 8-channel mixer with low-cost, high-performance lexicon effects mixers. 8+2 and 12+2 channel frame sizes. built-in 24 bit lexicon digital effects processor. 32 fx settings , hdmi cord - supply, installation testing and commissioning of high-speed hdmi corrosion-resistant connector & braided cable, supports ethernet, 3d, 4k video, computers and other hdmi-enabled devices black as required to complete the job,20 meter , conference controller - providing and fixing of conference controller ccse- cura-in (with recording system) , chairman mic - providing and fixing of delegate unit microphone mic auto switch-off time 75 seconds approx., speaker max. input 300mw , delegates mic - providing and fixing of delegate unit microphone mic auto switch-off time 75 seconds approx., speaker max. input 300mw , scrap return - buy back of old conference system with microphone, lifier cables and speakers total quantity : 224