The 12NTLS3500 represents the latest 18sound technology for high quality, low distortion applications. The Dual hgap motor structure maximize its benefits in therms of thermal dissipation and Bl symmetry, making the 12NTLS3500 the perfect component for high quality, low tuning, compact subwoofers.
Dual gap 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 12NTLS3500 the perfect component for highest quality compact subwoofers, thanks also to its 1800 watts power handling capabilities.
Specifications
Design
Parameters
Mounting and Shipping Info
Nominal Impedance4 Ω
Minimum Impedance3.3 Ω
Nominal Power Handling1750 W
Continuous Power Handling21500 W
Sensitivity394.5 dB
Frequency Range40 - 4000 Hz
Voice Coil Diameter88 mm (3.46 in)
Winding Materialaluminum
Winding Depth22.0 mm (0.87 in)
Magnetic Gap Depth12.5 mm (0.49 in)
Surround ShapeSingle roll - Rubber
Cone ShapeCurvilinear
Magnet MaterialNeo
Woofer Cone TreatmentWeather protected
Recommended Enclosure40.0 dm3 (1.41 ft3)
Recommended Tuning45 Hz
Resonance Frequency41 Hz
Re3.1 Ω
Qes0.36
Qms7.8
Qts0.34
Vas63.0 dm3 (2.22 ft3)
Sd531.0 cm2 (82.31 in2)
η₀1.2 %
Xmax7.9 mm
Xvar8.5 mm
Mms92.0 g
Bl14.5 Txm
Le0.39 mH
EBP113 Hz
Overall Diameter310 mm (12.2 in)
Bolt Circle Diameter295 mm (11.61 in)
Baffle Cutout Diameter283.0 mm (11.14 in)
Depth195 mm (7.68 in)
Flange and Gasket Thickness9 mm (0.37 in)
Net Weight4.7 kg (10.36 lb)
Shipping Weight5.6 kg (12.35 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.
