The CELTO 21SW1800-8 is a new 21” bass driver stocked by Viva Afrika. As usual with CELTO products, there has been absolutely no compromise in design, selection of materials used, manufacturing and quality control. This 21” driver features a beautifully finished powder coated die cast aluminium basket, Japanese wire 240°C voice coil, and a KEVLAR® loaded Canadian pulp paper cone with waterproof coating on both sides. This speaker has been designed to be ideal for more compact cabinet designs.
FEATURES
Deep, Clean, and punchy sound
Extra Long excursion design
DCS (Deflective Cooling System)
Water resistant KEVLAR® loaded paper cone
Optimized parameters for compact cabinets
SPECIFICATIONS
Nominal diameter: 460mm (18 inch)
Nominal Impedance: 8Ω
Power handling: 1800W RMS (AES Standard)
Sensitivity: 98dB / 1W / 1m
Voice coil diameter: 4.5 inch (115mm)
Voice coil height Hvc: 34mm
Voice coil air gap Hag: 15mm
Xmax (Hvc-Hag)/2 + Hag/4: ±13.25mm
Xmech (peak-peak): 62mm
Voice coil winding: 2 layers IN / OUT
Voice coil material: 240°C Thermal Class Copper
Voice coil former: DUPONT® GB fiberglass
Suspension: Triple roll, impregnated fabric
Spider: dual with silicon damping, NOMEX®
Cone: fiber loaded, waterproof treated paper
Chassis: Die Cast Aluminum
Magnet: Ø250mm Y35 Ferrite
MOUNTING & SHIPPING
Overall diameter: 546mm
Bolt circle diameter: 514-520mm
Baffle cutout diameter: 494mm
Flange and gasket thickness: 14mm
Overall depth: 229mm
Net weight: 16kg
Shipping weight: 20kg
Shipping box: 560x560x300mm
T&S PARAMETERS
F(s): 30.3Hz
Q(ms): 8.4
V(as): 281ℓ
M(ms): 355g
R(ms): 8.232kg/s
S(d): 1632cm²
V(d): 2.448ℓ
R(e): 5.36Ω
Q(es): 0.402
C(ms): 0.074mm/N
Q(ts): 0.384
L(e) 1kHz: 2.20mH
BL: 30.3
n(0): 2.00%
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