The CELTO 12NG500-8 forms part of the new range of loose mid-bass drivers 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 12” driver features a beautifully finished powder coated die cast aluminium basket, Japanese wire 240°C voice coil, KEVLAR® loaded Canadian pulp paper cone with waterproof coating on both sides, high purity and temperature DMEGC Y35 magnate, and secure square push terminals able to accommodate 5mm diameter connecting wire.

FEATURES

Balanced tonality ideal for 2-way speakers
High efficiency
Water resistant paper cone
Optimized parameters for compact cabinets

SPECIFICATIONS

Nominal diameter = 320mm (12 inch)
Nominal Impedance = 8Ω
Power handling = 500W RMS (AES Standard)
Sensitivity = 97dB / 1W / 1m
Voice coil diameter = 75mm
Voice coil height Hvc = 20.5mm
Voice coil air gap Hag = 9mm
Xmax (Hvc-Hag)/2 + Hag/4 = ±8mm
Xmech (peak-peak) = 40mm
Voice coil winding = 2 layers IN / OUT
Voice coil material = 240°C Thermal Class CCAW
Voice coil former = T600 fiberglass
Suspension = Triple roll, impregnated fabric
Spider = single, cold formed NOMEX®
Cone = fiber loaded treated paper
Chassis = Die Cast Aluminum
Magnet = Ø180mm Y30 Ferrite

MOUNTING & SHIPPING

Overall diameter = 315mm
Bolt circle diameter = 302mm (8*M5)
Baffle cutout diameter = 282mm
Flange and gasket thickness = 10mm
Overall depth = 139mm
Net weight = 6kg
Shipping weight = 7kg
Shipping box = 350x310x180mm

T&S PARAMETERS

F(s) = 49Hz
Q(ms) = 8.254
V(as) = 75ℓ
M(ms) = 61g
R(ms) = 2.27kg/s
S(d) = 551cm²
V(d) = 0.441ℓ
R(e) = 5.4Ω
Q(es) = 0.453
C(ms) = 0.173mm/N
Q(ts) = 0.43
L(e) 1kHz = 1.08mH
BL = 15
n(0) = 1.87%