Power	Diameter	Impedence
650 watts	15" - 38.1 cms	8 or 16 ohms

	Heavy duty 15" cast aluminium frame with extra wide flange for increased rigidity

	650WRMS

	4.5” copper coil assembly

	115 oz. ceramic magnet

	Huge copper area and breathing arrangement of the voice coil ensures superior power compression and effective heat dissipation

	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:

Ideal for bass applications, the PD.156 is the ultimate 15" transducer in a pole mounted box.When paired with PD.C14 or PD.C2 compression drivers, its ability to deliver bass is hard to match. Also suitable for keyboard and drum fill applications, the outstanding bass response belies the PD.156’s ability to operate effectively in a variety of versatile applications.

	Download PD156 Datasheet

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PD156 Technical Information

Nominal Diameter	38cm (15")
Power rating	650 Watts
Frequency range	Up to 1.5 kHz
Nominal Impedance	8 or 16 Ohms
Sensitivity (1 W 1 M)	97 dB
Resonance	35 Hz
Enc. Vol. Recommended	90 to 280 Litres
Displacement limit	19 mm (0.76”)
Voice coil diameter	115 mm (4.6”)
Voice coil	Copper
Voice coil winding depth	21 mm (0.84”)
Suspension (Spider)	Dual Fabric
Magnet gap depth	9 mm (0.36”)
Magnet material/mass	Ceramic/3.25 Kg (115 oz.)
Magnetic assembly total mass	11.00 Kg (24.31 Lbs.)
Flux Density	10,500 Gauss
Cone type/material	Curvilinear Smooth Paper
Surround	Fabric
Dust dome	Paper
Connectors	Spring loaded push button metal bodied
Polarity	Positive Voltage on Red Terminal gives forward cone motion
Thiele-Small Parameters
Fs	50.15 Hz
L1	1.38 mH
Revc	5.74 Ohms
L2	2.55 mH
Res	98.97 Ohms
RMSE-load	4.45
Qts	0.38
RMSE -free	0.95 Ohms
Qms	6.94
Vas	120.17 Litres
Qes	0.40
Mms	92.22 grams
Sd	800 sq cm
Cms	110 µM/Newton
R2	10.89 Ohms
BL	20.32 Tesla-M
SPLref	97.55 dB
Rub-index	0.03