18SW1500-8

Ultra Excursion. Seismic Control.

Description

Ultra-excursion beast—the CELTO Acoustique 18SW1500-8 pushes 1500W RMS with split-winding voice coil and massive ±13.25mm Xmax for devastating low-end. DCS cooling and KEVLAR® cone ensure control and durability at extreme levels. Designed for high-impact subs in clubs, festivals, and large installations. The 18SW1500-8 doesn't just reproduce bass—it redefines what's possible from an 18".

Key Features

  • Ultra long excursion, split winding, DCS, KEVLAR® cone

Applications

Transducers Where sound begins

Technical specifications

Nominal Diameter 18" (460mm)
Nominal Impedance 8 Ω
Power Handling RMS (AES) 1500 W
Sensitivity (1W/1m) 97 dB
Voice Coil Diameter 4" (100mm)
Fs (Hz) 34
Qms 9.763
Qes 0.406
Qts 0.39
Vas (liters) 182
Mms (g) 248
Rms (kg/s) 5.553
Sd (cm²) 1225
Re (Ω) 5.75
BL (Tm) 27.5
η0 (%) 1.8
Le (mH @1kHz) 1.98
Cms (mm/N) 0.0853
Xmax (±mm) ±13.25
Xmech (peak-peak mm) 62
Voice Coil Height (Hvc mm) 34
Voice Coil Air Gap (Hag mm) 15
Voice Coil Winding 2 layers IN/OUT
Voice Coil Material 240°C Copper
Voice Coil Former DUPONT GFB fiberglass
Overall Diameter (mm) 470
Bolt Circle Diameter (mm) 445
Baffle Cutout Diameter (mm) 422
Flange/Gasket Thickness (mm) 13
Overall Depth (mm) 225
Net Weight (kg) 15.5

Product files

Name
CELTO_18SW1500-8_A0_20250723_WEB_CAD
CELTO_18SW1500-8_A0_20250723_WEB_CAD
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