18Sound keeps expanding its tetracoil family to new diameters. The 7NTLW2000 represents the latest 18sound technology for high quality, low distortion applications. The smallest Tetracoil motor structure of the family uses the same concept to maximize its benefits in terms of thermal dissipation and Bl symmetry to a wide frequency band, making the 7NTLW2000 the perfect midbass component for the lightest possible line arrays.
Tetracoil motors linearize inductance and the perfect balance we reached between the motor and the ultra linear suspension allows both very high excursion and extreme precision in the mid band with the lowest intermodulation distortion in the professional market. This features, together with its extreme low weight make the 7NTLW2000 the perfect component for highest quality line arrays and multi-way systems.
Specifications
Design
Parameters
Mounting and Shipping Info
Nominal Impedance8 Ω
Minimum Impedance6.0 Ω
Nominal Power Handling1350 W
Continuous Power Handling2700 W
Sensitivity396.0 dB
Frequency Range70 - 4000 Hz
Voice Coil Diameter51 mm (2.0 in)
Winding Materialaluminum
Winding Depth13.0 mm (0.51 in)
Magnetic Gap Depth8.5 mm (0.33 in)
Surround ShapeTriple roll
Cone ShapeCurvilinear
Magnet MaterialNeo
Pole DesignDual Gap
Woofer Cone TreatmentWeather protected
Recommended Enclosure2.0 dm3 (0.07 ft3)
Recommended Tuning90 Hz
Resonance Frequency78 Hz
Re5.3 Ω
Qes0.22
Qms6.0
Qts0.21
Vas7.0 dm3 (0.25 ft3)
Sd176.7 cm2 (27.39 in2)
η₀1.4 %
Xmax4.4 mm
Xvar6.0 mm
Mms26.0 g
Bl17.5 Txm
Le0.7 mH
EBP354 Hz
Overall Diameter194 mm (7.64 in)
Bolt Circle Diameter182 mm (7.17 in)
Baffle Cutout Diameter165.0 mm (6.5 in)
Depth114 mm (4.51 in)
Flange and Gasket Thickness10 mm (0.41 in)
Net Weight1.3 kg (2.87 lb)
Shipping Weight1.5 kg (3.31 lb)
2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
