18s 12NLW9300 8 Ohm

18s 12NLW9300 8 Ohm
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  • SW10252
The 12NLW9300 is a high performance low frequency neodymium loudspeaker. It is intended mainly... mehr
Produktinformationen "18s 12NLW9300 8 Ohm"
The 12NLW9300 is a high performance low frequency neodymium loudspeaker. It is intended mainly as woofer for two way systems and works extremely well in compact vented enclosures (30 - 70 lit). The neo magnet external assembly assures high flux concentration, low power compression and excellent heat exchange. The external magnet configuration is considerably more efficient than the traditional under-pole magnet topology. This allows to obtain high levels of force factor and power handling with a power to weight ratio at the upper level. The aluminum heatsink has been studied according to F.E.A. simulators, improving the voice coil heat transfer. The direct contact between the heatsink the basket and the magnetic structure is a fundamental improvement in heat dissipation, increasing power handling capabilities and lowering power compression figure. A special low density multi-cell material air diffractor has been also placed into the backplate venting hole, acting as a cooling system, furtherly increasing power handling capability and lowering the power compression figure. A state-of-the-art Interleaved Sandwich Voice coil (ISV) provides high levels of thermal stability and durability. The ISV technology is based on a high strength fiberglass former with half the coil wound on the outside and half on the inside ensuring uniform thermal dissipation on both sides, bonded together using unique high- temperature resin adhesives achieving a balanced and solid linear motor unit. The 12NLW9300 performances are further improved by the use of Double Demodulation Rings (DDR), designed to reduce dramatically the intermodulation and harmonic distortion whilst improving the transient response. The 12NLW9300 design features a dedicated exclusive Carbon fibre reinforced straight ribbed cone

 

General Specifications

Nominal Diameter 300mm (12 in)
Rated Impedance 8 Ohm
AES Power 800W
Program Power 1200W
Peak Power 2400W
Sensitivity 97dB
Frequency Range 45 - 3200 Hz
Power Compression @-10dB 0,8 dB
Power Compression @-3dB 2,5 dB
Power Compression @Full Power 3,1 dB
Max Recomm. Frequency 1500 Hz
Recomm. Enclosure Volume 30 - 70 lt. (1,06 - 2,47 cuft)
Minimum Impedance 6,2 Ohm at 25°C
Max Peak To Peak Excursion 37 mm (1,46 in)
Voice Coil Diameter 100 mm (3,94 in)
Voice Coil winding material aluminum
Suspension Triple roll, polycotton
Cone Straight ribbed, paper

Thiele Small Parameters

Fs 40 Hz
Re 4,7 Ohm
Sd 0,053 sq.mt. (82,15 sq.in.)
Qms 4,67
Qes 0,25
Qts 0,24
Vas 87 lt. (3,07 cuft)
Mms 72 gr. (0,16 lb)
BL 18 Tm
Linear Mathematical Xmax ±8mm (±0,31 in)
Le (1kHz) 0,49 mH
Ref. Efficiency 1W@1m (half space) 95,4 dB

Mounting information

Overall diameter 315 mm (12,4 in)
N. of mounting holes and bolt 8
Mounting holes diameter 7,15 mm (0,28 in)
Bolt circle diameter 296-300 mm (11,65-11,8 in)
Front mount baffle cutout ø 282 mm (11,1 in)
Rear mount baffle cutout ø 282 mm (11,1 in)
Total depth 153 mm (6,02 in)
Flange and gasket thickness 17 mm (0,67 in)
Net weight 6,2 kg (13,69 lb)
Shipping weight 7 kg (15,45 lb)
Packaging Dimensions 332 x 332 x 184mm (13,07 x 13,07 x 7,24 in)
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