Eigtheen Sound 12NCX910BE Beryllium 12" 1.4" Neodymium Coaxial speaker 8ohm

High Frequency Beryllium diaphragm, 3'' Voice Coil voice coil 108dB
12''/1,4'' Single Neo magnet motor
Low Frequency 450 Watt 3" voice coil 99.5dB
Aluminum demodulating ring (SDR) for minimum LF distortion
Nominal dispersion of 80 degrees.

Designed for very high end compact, studio monitors, stage monitors as well as hifi and cinema speakers

The Eighteen Sound 12NCX910BE couples a special design 12" Neodymium loudspeaker with Beryllium high end 1.4" compression driver that combined offer the very highest sound fidelity specifically aimed at very accurate audio applications.

18 Sound apply a copper ring on the pole piece to reduce the inductance figure of frequencies above 10 kHz, and therefore improving phase and impedance linearization.

LF General Specifications

Nominal Diameter 300 mm (12 in)
Rated Impedance 8 Ohm
AES Power 450 W
Program Power 900 W
Peak Power 1800 W
Sensitivity 99.5 dB
Frequency Range 60 ÷ 4000 Hz
Max Recomm. Frequency 1800 Hz
Recomm. Enclosure Volume 25 ÷ 75 lt.
Minimum Impedance 6,4 Ohm at 25°C
Voice Coil Diameter 75 mm (3 in)
Voice Coil Winding Material copper
Suspension M roll, polycotton
Cone Curvilinear, Water repellent, High damping pulp

Fs 57 Hz
Re 5,3 Ohm
Sd 0,0531 sq.mt. (82.31 sq.in.)
Qms 10.0
Qes 0.31
Qts 0.3
Vas 58 lt. (2..05 cuft)
Mms 53 gr.
BL 18.1 Tm
Mathematical Xmax ± 6.9 mm
Le (1kHz) 0.78 mH
Half space efficiency 3.4%
Xvar ± 7.5 mm
EBP 183

HF General Specifications

D.C. Resistance 6,1 Ohm
Continuous Power 110W above 1,1 kHz
Max. program power 220W above 1,1 kHz
Sensitivity 108 dB
Frequency Range 0.9 ÷ 18 kHz
Min Xover Frequency 1.5 kHz
Voice Coil Diameter 76 mm (3 in)

Overall diameter 310 mm (12.20 in)
N. of mounting holes and bolt 8 Mounting holes diameter 5.9 mm (0,23 in)
Bolt circle diameter 295 mm (11.61 in)
Front mount baffle cutout ø 283 mm (11 in)
Rear mount baffle cutout ø 283 mm (11 in)
Total depth 210 mm (8.27 in)
Flange and gasket thickness 13 mm (0,53 in)
Net weight 6.0 kg (13.23 lb)
Shipping weight 6.5 kg (14.33 lb)
CardBoard Packaging dimensions 332 x 332 x 184 mm (13.07 x 13.07 x 7.24 in)