bids are invited for title 1 supply and installation , commissioning and testing of an elegant and reliable loudspeaker comprising of a single 30.48 cm ( 12” ) full range dual cone speaker and a piezo horn tweeter. power rating 100w rms / 200w programme two way frequency response55-20, 000hzlow frequency speaker -1 x 304.8mm ( 12” ) , ø38.1mm ( 1.5” ) voice coil high frequency unit- 1x piezo horn tweeter 2”×5”50.8mm ( 2” ) ×127mm ( 5” ) , spl at ( 1w / 1m ) 97 db, max. rated spl117 dbdimensions-w410 × h530 × d380 mm, weight15kg approx. mounting on wall. 6 title 2 supply and installation, commissioning and testing of professional 2-way active stage monitor loudspeaker has built-in bi-amplifier for lf and hf driver separately an optimally angled enclosure for effective floor monitoring in various indoor & outdoor applications. power output ( bi-amp ) lf: 350w rms at 1% thd class h, hf: 50w rms at 1% thd class aboutput regulation better than 0.5db input channels input-1: mic 20mv / 3kw balanced, line: 775mv / 10kw balanced, input-2: line ( jack ) 250mv / 20kw balanced, rca: 250mv ( l&r ) / 10kw frequency response 50-20, 000hz ±3db crossover frequency 2.5khz , filter slope 24db per octave signal to noise ratio 60db tone controls bass: ±5db at 100hz, treble: ±5db at 10khz output ( a ) loop through ( input-1 ) : 20mv or 775mv, ( b ) mixed output ( 1+2 ) : 775mv / 1kw protections ac: fuse 1x5a ( t 5a l ) dc: fuse 2x8a ( t 8a l ) power supply ac: 220-240v 50 / 60hz ac power consumption 500va dimensions w700 × h400 × d525mm weight 35 approx. 2 title 3 supply and installation commissioning and testing of super power professional 2-way pa loudspeaker loaded with two high power 38.1 cm ( 15” ) lf loudspeakers and a high frequency titanium compression horn driver give balanced sound reproduction with prominent lows and brilliant highs. power rating- 1300w rms / 2600w programme. frequency response- 35-20, 000hz, low frequency speaker-2 × 381 mm ( 15” ) lf speaker, high frequency unit- dynamic horn 203 mm ( 8” ) × 304 mm ( 12” ) , spl at ( 1w / 1m ) -103db, crossover frequency-2.4khz, input connectors-2 x speakon, dimensions- w542 × h1253 × d475 mm, weight-76 kg approx.. 2 title 4 supply and installation commissioning and testing of2250+2250 wattsac operation dual channel direct coupled amplifier, stereo / mono8ω : 1000w + 1000w rms, 4ω : 1550w + 1550w rms, 2ω : 2250w + 2250w rms, bridged output-8ω : 3100w, 4ω : 4500w, thd + n-< 1.0%, frequency response ( -1db ) -20-20, 000hz, low pass filter-80 / 120hz @ 24db per octave, power bandwidth ( 0.5% thd ) -20-20, 000hz, input sensitivity0dbu ( 775mv ) & 4dbu ( 1.23v ) ( selectable ) , input impedance-10k unbalanced, 20k balanced, signal to noise ratio-> 95db, channel separation-> 65db at 1khz, damping factor-400: 1 ( 8ω ) , slew rate-35v / μ protections-temperature, dc, rfi, short circuit, overload, built-in limiter ( on / off ) ac: circuit protector 20a; ± dc: fuse 2 x 25amp. ( t 25a l ) for each zone, fuse 2×3 amp. ( t 3a l ) , input connectors-2 × xlr, stereo phone jack 6.3mm, output connectors-speak on 4-way and heavy-duty binding post for each channel, cooling-variable speed dc fan with temperature sensing, front panel controls-2 × 41 step level attenuators, indicators-power on, signal, clip, temperature, protect ( ch. a &b, power consumption ( rated ) -5400va @ 220-240v ~ 50 / 60hz, dimensions-w482 × h153 × d580mm, weight-36kg approx.. 1 title 5 supply and installation commissioning and testing of 675+675 wattsdual channel direct coupled amplifier 1350 watts rated output, high fidelity sound. stereo / mono- 8ω : 2 × 250w, 4ω : 2 × 475w 2ω : 2 × 675w, bridged output- 8ω : 950w, 4ω : 1350w, thd +n < 1.0%, frequency response ( -1db ) - 20-20, 000hz, power bandwidth ( 0.5% thd ) -20-20, 000hz, input sensitivity- 0dbm ( 775mv ) / 1.23v ( selectable ) , input impedance-10k unbalanced, 20k balanced, s / n ratio- > 95db, channel separation-> 65db at 1khz, damping factor- 400 : 1 ( 8ω ) , slew rate-35v / μs, protections- temperature, dc, rfi, short circuit, overload, built-in limiter, ac: fuse 10amp. ( t 10a l ) ; ± dc: fuse 2 x 10amp. ( t 10a l ) for each zone, ± dc: fuse 2 x 2amp. ( for fan supply ) , input connectors-2 × xlr, stereo phone jack 6.3mm, output connectors- speak on 4-way, heavy duty binding post for each channel, cooling-variable speed dc fan with temperature sensing, front panel controls- 2 × 21 step level attenuators, indicators-power on, signal, clip, temperatures, protect ( ch. a & b ) , power consumption ( rated ) - 1800va @ 240v / 50hz, dimensions-w482 × h113 × d460 mm. weight- 14 kg approx.. 1 title 6 supply and installation commissioning and testing of professional mixer 12 mic and 10 line balanced mono inputs with enhanced headroom. 2 stereo balanced inputs. built-in mp3 player with 11 pre-set eq settings, digital multi-effects processor with 24 built-in effects. lcd display for viewing the effects / usb settings , mic input impedance / gain- 2kω balanced / 65db, line input impedance / gain-20kω balanced / 45db, impedance / gain-10kω balanced / 20db, thd- <0.08%, frequency response-25hz - 20khz ( +0, -1db ) , hi / hi-mid / low-mid / low-±12db at 12khz / 2.5khz / 400hz / 80hz, clip led indication-4db prior to true clip, line output nominal / max level-4dbu / 21dbu ( 1.22v / 9v ) , impedance-600ω, digital effects-24 effects digital processor , digital player-mp3 player with usb reader, 11 preset eqs, headphone output-200mv at 8w, thd <1%, mic input to line outputs-90db, line input to line outputs-70db, stereo input to line outputs20db, tape output ( l&r ) -600mv, tape input ( l&r ) - 100mv, power supply. with flat case. 1 title 7 supply and installation commissioning and testing of elegant & affordable high performance dual channel uhf wireless microphone, sturdy tabletop dual channel receiver with frequency display. ideal for: pa applications stage & auditoriums, seminar halls. 02 title 8 professional high quality pa gooseneck microphones with heavy duty base ( on / off switch ) suitable for various pa applications such as on lecterns and podiums. frequency respons-100-15, 000hz, 02 title 9 microphone floor stand. 06 title 10 supply and installation commissioning and testing of servo stabilizer 15 kva. 01