supply and installation of computer & other equipments at chandera govt: up school, kasargod - supply and installation of 250 watt ( rms ) pa amplifier with built in digital player 6mic &2 aux inputs, frequency response 50-15000 hz ±3db, bass, treble & master controls, speaker output 4 ohm, 8 ohm 70v & 100v, circuit breaker for over load and short circuit protection, workable on ac 220-240v 50hz. ( preferred model: ahuja ssa 250dp or any other leading brand having mirror features ) . 2 supply and installation of 30w pa wall speakers with all hardwaremounting accessories andhavingrated power taps of 32w / 16w / 8ohm on 100v, frequency response :80hz-20khz , input voltage : 100v / 70v , sound pressure level : 87 ±2db ( 1w / 1m ) ( preferred model : ahuja asx 312bt / wtor any other leading brand having mirror features ) . ) 3 supply and installation of 10w pa wall speakers with all hardwaremounting accessories andhavingrated power taps of 6w / 3w / 1.5w 8ohm on 100v, frequency response :150hz-20khz , input voltage : 100v / 70v , sound pressure level : 86 ±2db ( 1w / 1m ) ( preferred model : ahujaps 300t or any other leading brand having mirror features ) . ) 4 supply and installation of dual uhf wirelessmicrophone system with audio output 0-50mv, frequency response 50-15000hz and receiver workable on 220-240v ac, microphone workable on dc battery. ( preferred studiomaster xr 40hhor any other leading brand having mirror features ) . 5 supply and installation of 48v phantom powered 21 tabletop gooseneck microphone with base and xlr input, and having 20hz - 20, 000hz frequency response, 280 o impedance, high sensitivity and supplied with microphone base with on / offswitch and led. 6 supply of good quality compact +48v phantom power supply ( preferred model: ahuja / studiomaster ) . 7 suppply of 2 meter low noise shielded 2 core mic cable 3 pin xlr - phono connector. 8 supply and installation of unidirectional dynamic microphone frequency response 50-16, 000hz, sensitivity 2mv / pa, impedance 300 ohm. with 3 pin xlr connector & 10 meter low noise shielded 2 core mic cable. ( preferred model: ahujapro+3200 / 3400or any other leading brand having mirror features ) . 9 supply and fixing 20mm pvc medium gauge conduit conforming to is 9537 / 1983 part iii along with all required accessories on surface including making good the damages etc as required. 10 suppply of 10 meter low noise shielded 2 core mic cable 3 pin xlr male-famale connector. 11 supply and installation of superior quality chrome plated floor type microphone stand with holder of 920-1500mm height ( preferred model:ahuja dgnor any other leading brand having mirror features ) . 12 supply of good quality universal power distribution unit with surge arrestor having 10mtr long, 6 x 5a 5 pin plug sockets. 13 supply and drawing of high quality 40 / 0.37 gauge pvc covered twin lead speaker cable and its having high conductivity copper stranded conductors laid side by side in construction with pvc insulated sheath. 14 supply and fixing 19, 9u, wall mount rack with front glass door and having all hardware mounting accessories, provision for lock & unlock, acdb =4 ports , cable manager, cooling fan etc.and apart from related electrification as well. recommended make: d-link, hcl, netrack, president, valrack or equivalent.