bids are invited for ceiling speaker - 6 2-way full-range ceiling mount loud speaker with rms power: 30w, nominal impedance: 8 ohms, frequency response: 65 hz - 20 khz, nominal coverage: 110°, sensitivity: 89 db spl, max spl : continuous 104 db, peak 110db, support 70 / 100v transformer tapping , power amplifier - dual channel class d power amplifier with rated power: 250w @ 70v / 100v, 200w @8 o & 4 o ( bridged mode ) , 60 w @8 o & 4 o ( stereo mode ) , frequency response: 20 hz - 20 khz, signal to noise: >100 db, input impedance: >10k balanced or unbalanced , ceiling tile beamforming microphone - ceiling tile beamforming microphone should be 600mm x 600mm size, should support minimum 6 number of beams or better for full 360-degree coverage, should support voice lift, it should be possible to enable / disable any beam, mute / unmute led color indication, beamwidths of 35°, 45° and 55° with frequency invariance, beamforming range: 100 hz to 20 khz or better, deep sidelobes: down to 45 db of depth or better, beam pointing accuracy: 0.2 db or better, dynamic range: 20 hz to 20 khz, 6g acoustic echo cancellation, noise cancellation, automatic level control, automatic gain control, support adaptive steering, room patterns: full circle / square, rectangular, semicircle / classroom or better, should support camera tracking, built-in robust power amplifier configurable as 4 x 15 watt @ 8 / 4 o load or 2 x 30 watt @ 4o load or better, amplifier frequency response: 20hz – 22khz, should support daisy-chain up to three ceiling tiles via cat 6 cable or better and distance support upto 200 ft poe power supply: 90w poe++ power supply kit for beamforming microphone array , digital signal processor - dsp with 4 configurable mic / line audio inputs with aec and 8 configurable mic / line outputs, built-in usb audio, and built-in support for voip, standalone and daisy-chained system, auto-discovery of devices, acoustic echo cancellation processing, distributed echo cancellation on every mic input, noise cancellation with adaptive-ambience, acoustic intelligence, speaker output of 10w power@ 8? load, frequency response: 20hz – 22khz, thd + n: 0.006%, dynamic range: >105db, input impedance: 2.2ko crosstalk: < -98db, output impedance: 95?, 4 gpio port, control port rs232, ip or better should support sip based conferencing up to 5 lines and 5 calls based on line configuration , visual collaboration device - visual collaboration device should support to connect laptop or room pc to audio and videoperipherals with a single-cable connection, windows and ios, should work on display link driver, should supports resolution up to 2048 x 1152, supports dvi-i / hdmi / vga, with built-in usb 3.0 gigabit ethernet adapter and audio mic in and line out, should support primary / extend / mirror video modes, chipset: dl3900, vl82b2, fe 1.1s, flash: 8mb, sdram: ddr3 1gb or better, should have interface: 3.0 usb ports - 3 nos, 2.0 usb port - 4 nos, hdmi and dvi output ports , ptz camera - professional-grade ptz camera with 12x optical zoom, 1 / 2.7 inch, cmos sensor, should support full hd 1080p@60 resolution, should support to control the camera’s functions via ir remote, rs-232, or uvc protocol, h.264 / h.265 streaming and line-in interface to stream audio along with video over ip, super-high snr with advanced 2d and 3d noise reduction, horizontal angle of view : 72.5° – 6.9°, vertical angle of view : 44.8° – 3.9°, horizontal rotation range : ±170°, vertical rotation range : -30° – +90°, pan speed range : 1.7° – 100° / s, tilt speed range : 1.7° – 69.9° / s, support horizontal & vertical flip, image freezing, should have minimum 255 number of presets, supports poe connection, supports usb 3.0 and 2.0 interfaces, white balance : auto, indoor, outdoor, one push, manual, should support backlight compensation, video s / n : =55db, should support usb3.0 & hdmi video output simultaneously, network interface: rj45.camera mounting kit: camera mounting kit for ptz cameraptz camera, visual collaboration device and ceiling tile beamforming microphone should be from same oem , av controller - av controller with compact 16 port master / room controller with support poe, should have 1ghz processor speed, memory of 512 mb ram or better, 4gb flash memory, control app should support iphone, ipad, and android, connectors: 4x rs232 bidirectional control ports, 4x ir emitter & 1x ir receiver control ports, 4x relay port, 4x gpi / o control ports, network support 10 / 100 / 1000mbps ethernet , touch panel - 10 tablet with 3gb ram, 32gb rom , 16 port network switch - 16-port gigabit managed network switch , rack - 12u rack with cable manager, pdu and all accessories , cables - 1 no.of 3m high-speed hdmi male to male cable, 1 no.of 10m high-speed hdmi male to male cable, 1 no.of 1.8m usb 3.0 type a male to male cable, 1 no.of 5m active usb 3.0 type a male to type b male cable, 2 no.of 10m active usb 3.0 type a male to type b male cable, 10 meter 2 core microphone cable, 150 meter shielded cat6 cable, 100 meter 1.5 sq.mm speaker cable, assorted cables & connectors. , supply installation testing & commissioning charges - supply installation testing & commissioning charges total quantity : 1