Eighteen Sound 12NCX750

Eighteen Sound 12NCX750
General Specifications Datasheet
Brand Eighteen Sound
Reference 12NCX750
Manufacturer website www.eighteensound.com
Size 12 in
300 mm
Type Coaxial
Impedance Z 8 Ω
Minimum impedance Zmin 6.4 Ω
Nominal Power P 400 W
Program Power Pmax 800 W
Sensitivity SPL 97 dB
Usable frequency range 60 - 18000 Hz
Recommended crossover 1800 Hz
Eighteen Sound 12NCX750 Directivity map
Eighteen Sound 12NCX750 Frequency response
Eighteen Sound 12NCX750 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 58 Hz
Surface area of cone Sd 531 cm²
DC resistance Re 5.4 Ω
Mechanical Q Qms 6.42
Electromagnetic Q Qes 0.31
Total Q factor Qts 0.29
Mechanical suspension compliance Cms 158 µm/N
Compliance equivalent air volume Vas 63 liters
Moving mass Mmd 40.94 g
Moving mass (including airload) Mms 48 g
Mechanical resistance Rms 2.72 N·s/m
BL product BL 17.5 T·m
Voice coil inductance Le 0.62 mH
Maximum linear excursion (one way) Xmax 5.5 mm
Maximum mechanical limit (one way) Xlim 13.5 mm
Efficiency η₀ 4.8 %
Efficiency bandwidth product EBP 187
Effective diaphragm diameter Ø 26 cm
Import this driver in a simulation software:
WinISD 18Sound 12NCX750.wdr
Hornresp 18Sound 12NCX750.txt
Basta! 18Sound 12NCX750.bastaelement
Eighteen Sound 12NCX750 Dimensions
Dimensions
Overall diameter 310.0 mm
Baffle hole diameter 280.0 mm
Overall depth 148 mm
Flange thickness 14 mm
Net weight 4.5 kg
Materials of construction
Diaphragm material Water Resistant Pulp
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 75 mm
Coil material Copper
Magnet Parameters
Magnet material Neodymium
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 12NCX750 400 97 58 531 6.42 0.31 63 5.5
Eighteen Sound 12NCX750H 400 95 58 531 6.42 0.31 63 5.5
LaVoce WAF122.50 350 97 55 544 7.90 0.40 55 6.0
Eighteen Sound 12W600 450 96 50 531 5.87 0.32 73 6.5
SICA 12 Cx 3 CP 400 98 49 531 7.21 0.35 73 4.5
SICA 12 PF 3 500 96 47 531 5.80 0.42 77 5.5
Fane SOVEREIGN 10-300 300 98 58 378 6.08 0.33 41 5.5
Beyma 12WRS400 400 97 44 530 7.70 0.32 78 6.3
Eighteen Sound 12ND930 500 98 50 531 5.64 0.22 70 6.5
Beyma 12WR400 400 97 42 530 5.60 0.30 91 6.3
Eighteen Sound 12ND830 450 99 55 531 5.15 0.30 72 6.5

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