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

Long excursion, Low distortion design
Deep, clean and punchy 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 inch (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: 240°C Thermal Class Copper
Voice coil former: DUPONT® GFB
Suspension: Triple roll, impregnated fabric
Spider: Dual with silicon damping, NOMEX®
Cone: Fiber loaded, waterproof 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%