Power	Diameter	Impedence
1000 watts	21" - 53.34 cms	4, 8 or 16 ohms

	Heavy duty 21” cast aluminium frame with extra wide flange for increased rigidity

	Sub Woofer

	Field replaceable magnet for touring applications

	1000Wrms

	6” copper voice coil assembly

	Neodymium magnet

	Power compression 2dB at rated power *1

	Distortion *2 2nd Harmonic <1%

	3rd Harmonic <1%

	Advanced magnetic assembly incorporating a composite alloy and steel pole piece giving a uniform and stable magnetic field, improving linear excursion and providing an efficient thermal path to dissipate the heat produced by the voice coil

	A B/L in excess of 34 T/m for fast accurate lows

	Double suspension system maintaining a pure piston action for the moving mass even when driven with the most complex programme input signals and provides additional durability against the rigours of life on the road

Description:

The PDN.2151 is a unique high power, high efficiency cone transducer designed specifically to provide powerful and accurate sub bass frequencies with minimal distortion and power compression. Delivers faultless low end performance in applications in which others fall by the wayside. Perfectly at home in new or refurbished horn loaded sub bass systems this unit also delivers powerful lows in reflex designs. An outstanding drive unit since it allows designers considerably more freedom with enclosure design and specialised loading techniques without having to allow for physical characteristics or power handling limitations which are typically the result of more traditional designs. *1 Power compression is the reduction of sensitivity at the specified power. Higher power ratings do not necessarily give a proportionate increase in SPL, therefore the maximum SPL of the PDN.2151 may significantly exceed that of other manufacturers with high published power ratings. *2 Distortion is measured at 10% of the rated power (AES Standard).

	Download PDN.2151 Neodymium Datasheet

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PDN.2151 Neodymium Technical Information

Nominal Diameter	53cm (21")
Power Rating	1000 Watts
Frequency Range	30-100 Hz
Nominal Impedance	4,8,16 Ohms
Sensitivity (1W 1M)	99dB
Highest Recommended Crossover	300 Hz
Resonance	31 Hz
Enc. Vol. Recommended	130 to 350 Litres
Effective Piston Diameter	455mm (18.2")
Displacement Limit (peak-peak)	38mm (1.5")
Voice Coil Diameter	152mm (6.08")
Voice Coil	Copper
Voice Coil Winding Height	30mm (1.2")
Voice Coil Wire Length	56.6m (186')
Magnetic Gap Depth	15mm (0.59")
Magnet Material	Neodymium
Flux Density	1.1T
Cone / Surround	Paper / Fabric
Thiele-Small Parameters
Fs	27 Hz
Revc	5.4 Ohms
Qts	0.18
Qms	4.723
Vas	474.8 Litres
Qes	0.187
Mms	281 grams
Sd	1688 cm2
Cms	0.119 mm/n
BL	37.13 Tm
Xmax	10.5 mm
Vd	1.76 Litres
No	4.81 %
Pmx	1000 Watts