The SW series of subwoofers are the flagship of the CELTO range of loose bass transducers. There has been absolutely no compromise in design, selection of the materials used, manufacturing and the QC process.

The 18SW1200 is a beautifully finished ultra-thick powder coated aluminum die-cast woofer, with a solid <0.1% carbon CNC machined steel T-Yoke, French bobbin with Japanese wire 240°C voice coil, Japanese / USA damper, water resistant fiber loaded Canadian pulp paper cone, high grade Y35 flaw-free ferrite magnet and a robust 5mm square spring terminal connecting block.

Features

• High excursion, Low distortion design
• Deep, clean and puchy bass
• DCS (Deflective cooling system)
• Water resistant Kevlar loaded paper cone
• Optimized parameters for compact cabinet designs

Specifications

• Nominal diameter: 460mm (18″)
• Nominal impedance: 8 ohms
• Power handling: 1200W RMS (AES Standard)
• Sensitivity: 97dB / 1W / 1m
• Voice coil diameter: 4″ (100mm)
• Voice coil height Hvc: 26mm
• Voice coil air gap Hag: 12mm
• Xmax (Hvc-Hag)/2 + Hag/4: +/- 10mm
• Xmech (peak-peak): 50mm
• Voice coil winding: 2 layer IN/OUT
• Voice coil material: IEC grade copper
• Voice coil former: T600 fiberglass
• Suspension: Triple roll, impregnated fabric
• Spider: Dual with silicon damping, NOMEX
• Cone: Fiber loaded treated paper
• Chassis: Die-cast aluminum
• Magnet: 220mm diameter Y35 ferrite

Mounting & Shipping

• Overall Diameter: 470mm
• Bolt circle diameter: 445mm
• Baffle cutout diameter: 422mm
• Flange & gasket thickness: 13mm
• Overall depth: 212mm
• Net weight: 13Kg
• Shipping weight: 15Kg
• Shipping dimensions: 460x460x280mm
• T&S Parameters
• F(s): 35Hz
• Q(ms): 10.351
• V(as): 205 liters
• M(ms): 215 grams
• R(ms): 4.568 Kg/s
• S(d): 1225 sq.c+C5m
• V(d): 1.225 liters
• R(e): 5.7 ohms
• Q(es): 0.427
• C(ms): 0.0962 mm/N
  Q(ts): 0.412
• L(e): 1KHz: 1.98mH
• BL: 25.1
• n(0): 2.03%