18 Sound 8NM610 8ohm 400watt Very High Output Neodymium MF

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Product Info

18 Sound 8NM610 8ohm 400watt Very High Output Neodymium MF


18 Sound 8NM610 Very High Output Neodymium MF

104 dB SPL 1W / 1m average sensitivity (free air)
75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
400 W AES power handling
High force neodymium motor assembly
Copper ring to linearize impedance curve
Extremely low distortion design
Sealed basket design
Humidity resistant cone
Ideal for high quality, very high SPL midrange applications

The 8NM610 is a 8 inch neodymium high output midrange frequency transducer designed around a cast aluminum sealed basket. The design goal for this unit is to achieve an extremely high sound output and quality for direct and mainly horn loaded applications such as line array configurations. The back cavity volume has been optimized with attention to horn applications and also on the heat extraction because it is a true powerful heatsink for all the encapsulated magnet structure. An oversized external configuration neodymium magnet, considerably more efficient than traditional under-pole magnet topology, have been used in order to provide high flux density and excellent distortion control. A flux stabilizing copper ring minimizes the overall harmonic and intermodulation distortion figure. The curvilinear cone, made with a high damping wood pulp, has been developed to achieve the best possible linearity within its frequency range. The 75mm (3 in) aluminum inside outside voice coil employs our Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a balanced coil with a uniform distribution of mass and motive energy. This results in an extremely linear motor assembly. A proprietary humidity-block cone treatment makes the transducer suitable for outdoor use in adverse weather conditions. In addition, a special coating applied to both the top and back plates makes the 8NM610 far more resistant to the corrosive effects of salts and oxidization.

General Specifications
Nominal Diameter 200mm (8 in)
Rated Impedance 8 Ohm
AES Power 400 W
Program Power 600 W
Peak Power 1200 W
Sensitivity 104/108,5 dB (free air / horn loaded)
Frequency Range 400 ÷ 5000 Hz
Power Compression @-10dB 0,6dB
Power Compression @-3dB 1,6dB
Power Compression @Full Power 2,2dB
Max Recomm. Frequency 3000 Hz
Recomm. Enclosure Volume - - -
Minimum Impedance 6.5at 25°C
Max Peak To Peak Excursion 9 mm (0,4 in)
Voice Coil Diameter 75 mm (3 in)
Voice Coil Winding Material aluminum
Suspension M-roll, Polycotton
Cone Curvilinear, Paper

Thiele Small Parameters
Fs 259 Hz
Re 10 Ohm
Sd 0,022 sq.mt. (34,1 sq.in.)
Qms 1,2
Qes 0,28
Qts 0,23
Vas 1,6 lt. (0,1cuft)
Mms 17 gr. (0,04 lb)
BL 31 Tm
Linear Mathematical Xmax ±3 mm (±0,12in)
Le (1kHz) 0,5 mH
Ref. Efficiency 1W@1m (half space) 102dB

Mounting information
Overall diameter 240 mm (9,4 in)
N. of mounting holes and bolt 4
Mounting holes diameter 6,5 mm (0,3 in) Bolt circle diameter 220 mm (8,7 in) Front mount baffle cutout ø 192 mm (7,6 in)
Rear mount baffle cutout ø 184 mm (7,2 in)
Total depth 113 mm (4,4 in)
Flange and gasket thickness 14 mm (0,6 in)
Net weight 3,9 kg (8,6 lb)
Shipping weight 4,3 kg (9,5 lb)
Packaging Dimensions 235 x 235 x 150 mm (9,25 x 9,25 x 5,91 in)


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