The curvilinear profile LF cone provides smooth response within its intended frequency range thanks to its high damping pulp composition. The 75mm (3in) LF copper voice coil employs Interleaved Sandwich Voice coil (ISV) technology, in which a high strength former carries windings on both the outer and inner surfaces. This results in a balanced coil with a uniform distribution of mass and motive energy and an extremely linear motor assembly. The low distortion and sound quality are further improved by an aluminum demodulating ring (SDR technology) that flatten LF impedance and phase with constant power transfer.

Equipped with a proprietary hybrid radial tangerine phase plug, the integrated HF compression driver has been designed to give a smooth, coherent wavefront at the horn entrance in all working frequency ranges with an high level of manufacturing consistency. The phase plug, with its short openings and high flare rate value, assures low distortion and remarkable improvements in mid-high frequency reproduction. A copper sleeve reduces inductance value above 10kHz, improving phase and impedance linearization.

The 2.4" diameter HF diaphragm assembly uses a high strength, high temperature treated Nomex voice coil former joined directly to the titanium diaphragm on its upper bend edge, assuring extended frequency energy transfer. This improves linearity and shows unparalleled reliability when compared with a straight former joint. A specific HF exit profile design has been chosen in order to maximize the cone’s profile coupling.

The high force neodymium single magnet structure makes the 15NCX750H a lightweight speaker for its performance class - only 5.1kg (11.25 lb).

The XO15NCX dedicated passive crossover filter is provided, making this neo coaxial speaker a ready-to-use transducer system.

Due to the widespread use of high power audio systems at outdoor events, the ability to perform in adverse weather conditions is an additional key feature of the 15NCX750H. This has been achieved using exclusive cone and magnet plate treatment processes which increase resistance against corrosion and make the cone water repellent.

Features

• 97 dB LF / 109 dB HF SPL 1W/1m average sensitivity
• Single magnet neodymium motor
• 800W LF - 240W HF maximum program power handling
• 75 mm (3”) Interleaved Sandwich LF Voice coil (ISV)
• Aluminum Demodulating Ring (SDR) for minimum LF distortion
• 60 mm (2.4”) HF pure Titanium diaphragm
• Edge-wound Aluminum ribbon HF voice coil (EWAL)
• HF copper sleeve for reduced distortion and higher output
• Smooth on/off axis 70° x 50° response
• Suitable for compact enclosures and stage monitors

Specification

General Specifications

• Nominal Diameter: 380 mm (15 in)
• Rated Impedance: 8 Ohm
• AES Power: 400 W
• Program Power: 800 W
• Peak Power: 1600 W
• Sensitivity: 97 dB
• Frequency Range: 50 - 4700 Hz
• Power Compression @-10dB: 0.9 dB
• Power Compression @-3dB: 2.8 dB
• Power Compression @Full Power: 4.2 dB
• Max Recomm. Frequency: 1400 Hz
• Recomm. Enclosure Volume: 80 - 140 lt. (2.83 - 4.95 cuft)
• Minimum Impedance :6.3 Ohm at 25°C
• Max Peak To Peak Excursion: 27 mm (1.06 in)
• Voice Coil Diameter: 75 mm (2,95 in)
• Voice Coil winding material: copper
• Suspension: Triple roll, Polycotton
• Cone: Curvilinear, Water repellent, High damping pulp

General Specifications HF

• D.C. Resistance: 6,1 Ohm
• Continuous Power: 120 W
• Program power (8): 240 W
• Sensitivity (9): 109 dB
• Power Compression @Full Power: 4.2 dB
• Frequency Range: 0.6 - 15 kHz
• Min. Xover Frequency: 1.1 kHz
• Diaphragm material: Titanium
• Voice Coil Diameter: 60 mm
• Voice Coil winding material: Edge-wound aluminum
• Magnet material: Neodymium

Thiele Small Parameters

• Fs: 49 Hz
• Re: 5,4 Ohm
• Sd: 0,0881 sq.mt. (136.56 sq.in.)
• Qms: 6.32
• Qes: 0,40
• Qts: 0,37
• Vas: 141 lt. (4.98 cuft)
• Mms: 80.6 gr. (0.18 lb)
• BL: 18.5 Tm
• Linear Mathematical Xmax: ± 5.5 mm (±0,22 in)
• Le (1kHz): 0.66 mH
• Ref. Efficiency 1W@1m (half space): 4.1 %

Mounting information

• Overall diameter: 393 mm (15,47 in)
• N. of mounting holes and bolt: 8
• Mounting holes diameter: 7,15 mm (0,28 in)
• Bolt circle diameter: 371 mm (14,61 in)
• Front mount baffle cutout ø: 360 mm (14.17 in)
• Rear mount baffle cutout ø: 354 mm (13.94 in)
• Total depth: 185 mm (7.28 in)
• Flange and gasket thickness: 14 mm (0,55 in)
• Net weight: 5.3 kg (11.68 lb)
• Shipping weight: 6 kg (13,23 lb)
• Packaging Dimensions: 6 kg (13,23 lb)