bids are invited for integrated pa system total quantity : 6; 1 audio speaker make & model nominal diameter 381 mm/15 in power rating 500 w(aes) nominal impedance 8 sensitivity 97 db frequency range 45-3500 hz chassis type cast aluminum magnet type ferrite weight 2.9 kg/103.9 oz voice coil diameter 82.5 mm/3.25 in coil material cca-w former material glass fiber cone material paper surround material cloth suspension single x-max 4.8 mm/0.19 in gap depth 10.0 mm/0.39 in voice coil winding width 19.6 mm/0.77 in re 5.5 fs 41 hz mms 90.0 g/3.17 oz mmd 74.95 g/2.64 oz qms 4.21 qes 0.41 qts 0.37 vas 183.44 lt/6.48 ft bi 17.76 tm cms 1.7e-04 m/n rms 5.51 ns/m le (at 1khz) 0.43 mh sd 881 cm2 2 power speaker make & model nominal diameter 457 mm (18 in) nominal impedance 8 ω nominal power handling 1200 w(aes) continuous program power capacity 2400 w sensitivity 97 db frequency range 45-3500 hz voice coil diameter 82.5 mm/3.25 in voice coil material copper (in/out) former material glass fiber effective piston diameter 394.5 mm (15.5 in) magnet material ferrite basket material aluminium surround material cloth cone material paper dust cap material paper spider material cotton (double silicone) gasket eva pole design t-pole cone treatment waterproof front side fs 41 hz re 5.8 ω qms 11.02 qes 0.77 qts 0.72 bl 22.9 tm mms 276.92 g mmd 252.27 g vas 117.56 lt sd 1225 cm2 le 1.12 mh eff (η) 0.68% cms 5.8 e-05 m/n xmax 5.25 mm hag 15 mm hvc 25.5 mm diameter baffle cutout diameter mounting hole diameter bolt circle diameter depth flange and gasket thickness 466.0 mm (18.3in) 426.1 mm (16.8 in) 446.0 mm (17.6 in) 8 x ø (7.6 x 10 mm) 211.4 mm (8.3 in) 18.5 mm (0.72 in) 3 power amp make & model 2 qeia 1khz 1%thd 2500 w 4 qeia 1khz 1%thd 1850 w 8 qeia 1khz 1%thd 1350 w 8 (bridge mono 3700 w 4 q bridge mono 4800 w distortion (smpte-1m) <0.01% s/n ratio 103 db damping factor >1000 >800 frequency response 20 hz - 20 khz 4 connection speakon make & model connection type speakon gender female contact resistance < 2 mω (after lifetime) dielectric strength 4 kvdc (peak) insulation resistance > 1 gω (after dampheat) rated current per contact 40 a rms continuous rated current per contact 50 a audiosignal, duty cycle 50 % rated voltage 250 v ac attention speakon is not to be used as an ac mains or power supply connector! cable o.d. 7 - 14.5 mm cable retention ≥ 220 n (subject to cable o.d. and material) lifetime > 5000 mating cycles wiresize 4 mm² / 6 mm² (screw type terminals/soldering) wiresize 12 awg / 10 awg wiring screw type terminals or soldering locking device quick lock (latch) contact plating 4 μm ag contacts brass (cuzn39pb3) insert pbtp 20 % gr locking element zinc diecast (znal4cu1) shell pbtp 20 % gr strain relief polyacetal (pom) flammability ul 94 hb solderability complies with iec 68-2-20 temperature range -30 °c to +80 °c current rating 40 a rms continuou• s • up to 50 a audio signal, duty cycle 50% only 3 parts, easy to assemble high impact materials - long-lasting and reliable easy and extremely precise locking system quick lock improved grip on latch 1 piece strain relief, chuck for 7 to 14.5 mm cable o.d. color coding possible 5 cable two core coil make & model no of conductors 2 conductor no size of wire 100/0.16mm conductor cross sectional area 2.0 sqmm insulation type pvc insulation dia 3.50 mm core colours blue and white sheath type matt finish high flex pvc overall od 9.2 mm dc resistance @20 °c – conductor 9.20 ω / km operating voltage 600 v inductance – (1khz at 20 °c) 0.7 μh/m capacitance – (1khz at 20 °c) 97pf/m voltage breakdown must withstand dc 500v / 15 sec insulation resistance 10000 m x m min. at dc 125v, 20 °c operating temperature -20⁰ c to 70⁰ c dielectric strength 2 (kv/1 min.) dc flex life 11500 cycles dielectric constant 4