The 6ND430 is a 6 inch neodymium woofer designed for low frequency reproduction in 2-way systems or multiway systems where both low weight and high intelligibility are required. The speaker has been specifically designed for compact reflex enclosures where high quality low-bass and mid frequencies are required such as studio monitoring applications. It is also currently used in line array or multiway systems with excellent results. The extremely powerful external neodymium magnet assembly assures high flux concentration, low power compression and excellent heat exchange. The levels of force factor and power handling are, as a consequence, at a top professional level with an optimum power to weight ratio. A consistent heat transfer is guaranteed by the encapsulation of the magnetic structure in the interior of the basket, offering a large contact space between the back plate and the dissipating structure. Particular effort was given to the surround shape and material design in order to minimise the resonances on mid range frequencies. The new design, realised with specified rubber based material density, offers a consistent dampening to typical bell modes. The 45 mm voice coil is made from a light-weight aluminum wire and assures linearity and high power handling. A proprietary humidity-block cone treatment makes the transducer suitable for outdoor use in adverse weather conditions. In addition, a special coating applied to both the top and back plates makes the 6ND430 far more resistant to the corrosive effects of salts and oxidization.

Resonant frequency	fS	61	Hz
Electrical Q	QES	0.28
Mechanical Q	QMS	6.50
Total Q factor	QTS	0.27
Suspension equivalent air volume	VAS	12.6	litres
DC resistance	RE	5.5	Ω
Minimum impedance	Zmin	6.1	Ω
Voice coil inductance	LE	0.28	mH
Force factor	B·l	10	T·m
Suspension mechanical resistance	RMS	0.8	N·s/m

Suspension mechanical compliance	CMS	502	µm/N
Moving mass	MMD	12.2	g
Moving mass (including airload)	MMS	13.3	g
Surface of the diaphragm	SD	133	cm²
Effective diaphragm diameter	Ø	13	cm
Maximum linear excursion	Xmax	± 5	mm
Excursion limit	Xlim	± 11	mm
Displacement volume at Xmax	VD	66.5	cm³
Efficiency	η₀	1	%
Efficiency bandwidth product	EBP	217

Overall diameter	162	mm
Baffle hole diameter	148	mm
Overall depth	73	mm
Flange thickness	9.5	mm
Net weight	1.25	kg
Diaphragm material	Curvilinear, Paper
Surround material	Single roll, Rubber
Voice coil diameter	44	mm
Coil material	Aluminum
Magnet	Neodymium