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18″ SL 1K1

18-inch Loudspeaker 550W RMS


Developed to reproduce sub-bass and bass ranges, the SL 1K1 model fits a variety of audio systems, whether them automotive or professional (bands, shows, pubs, churches, three-way, theaters, movies, etc.). We gladly invite you to dive into a unique sound experience, in which low frequencies are precisely harmonic through smooth bass and sharp tones.

Technical information
RMS Power 550W
Potência de Programa Musical 1,100W
Nominal Impedance 4 or 8 ohms
Resistência Elétrica do Fio da Bobina 2.3 / 6.6 ohms/VCC
NO (Efficiency Referential) 3.156%
Sensitivity (@ 1W, 1 m)-Free-air 97.010dB
Diaphragm Mass 0.242 lbs (0.1099 kg)
Total Mass 0.293 lbs (0.1332 kg)
BL Product 15,139 TM
Mechanical Q (Qms) 8.566
Electrical Q (Qes) 0.522
Total Q (Qts) 0.492
Compliance (CMS) 101.261uM/N
Equivalent Volume (VAS) 55.327 gal (209.437 liters)
Frequency Response 30 Hz to 1,200 Hz
Resonance Frequency 43.335 Hz
Cone Effective Area (SD) 0.920 Sq.ft (0.0855 Sq.m)
Cone Excursion without Distortion (X MAX) -+ 0.374 inches (9.5 mm)
Gap Flux Density 9,100 GAUSS
Nominal Diameter 18 Inches
Ferrite Measures 7.874 x 0.984 inches (200 x 25 mm)
Coil Diameter 4 Inches
Coil Height 0.984 inches (25 mm)
Coil Wire Material Copper
Coil Wire Section Round
Coil Shape Fiber
Gap Height 0.472 inches (12mm)
Housing Structure Material Aluminum
Ferrite Material Barium
Weight 26.01 lbs (11.8 kg)
Cabinet Occupied Volume 3.0379 gal (11.5 liters)