bids are invited for supply installation testing and commissioning of audio visual equipment for 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 with a dispersion angle of 160 deg , 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 2 core atc copper conductor, pe insulated, core twisted in a circular form, inner sheathed with moisture proof polymer, braid shielded 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 is 694-1990 of approved make. , wall mounting rack - 12u cabinet 590x600x600, 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. , 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 , delegates mic - providing and fixing of delegate unit microphone mic auto switch-off time 75 seconds approx., speaker max. input , scrap return - buy back of old conference system with microphone, lifier cables and speakers total quantity : 250