PD.123C001

Bass / Mid Range Driver

Vented cast aluminium chassis for improved thermal control of voice coil
Optimised vented voice coil cools and reduces coil gap turbulence
Multi roll cone surround profile
High BL of 24.5 T/m

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The PD.123C001 offers excellent linear response well controlled down to 50Hz. It is a very good solution for two way or multi way systems where high BL and good punch is required.

Frequency Response GRaPH

Impedance GRAPH

General Specifications

Nominal Diameter	12" / 304.8 mm
Voice Coil Diameter	3.0" / 76.2 mm
Available Impedances	4 Ω/ 8 Ω/ 16 Ω
Power Rating ^{1 2 *}	600 W (A.E.S.)
Peak Power (6dB Crest Factor)*	2400 W (A.E.S.)
Sensitivity (1W – 1m)*	99 dB
Frequency Range	45 Hz - 4 kHz
Recommended Enclosure Volume	35 - 55 Litres
Resonance	35 Hz
Voice Coil Winding Depth	0.83" / 21.00 mm
Magnet Gap Depth	11.00 mm / 0.43"
Flux Density	1.20 Tesla
Magnet Material	Y30 Ferrite
Magnet Weight
Voice Coil Material	Copper
Former Material	Glass Fibre
Dust Dome Material	Paper
Suspension Material	Fabric
Cone Material	Paper
Surround Material	Fabric

Thiele Small Parameters

Fs	35 Hz
Re	5.5 Ω
Qms	7.5
Qes	0.147
Qts	0.144
Le (@1 kHz)
Le (@10 kHz)	2.170 mH
Vas	122 Litres
Mms	70.00 g
Sd	547 cm2
Cms	288.00 µm/N
BL	24.50 T/m
Xmax	7.5 mm
Vd	0.410 Litres
Ref. Efficiency	3.44%
EBP	238.10 Hz

Dimensions & Mounting

Overall Diameter	12" / 304.8 mm
Widths Across Flats	320 mm
Flange Height	10.00 mm
Depth (Excl. Flange)	121.00 mm
Magnet Diameter	200 mm
Chassis Shoulder Diameter	279.00 mm
Outer Bolt Circle	x4 M6 318 mm PCD
Inner Bolt Circle	(Hidden) x8 M6 on 293 mm PCD

Shipping Information

Nett Weight	9.70 Kg / 21.38 lb
Shipping Weight	10.20 Kg / 22.49 lb

Notes

* 2.83V. Half space response measured in a 975 litre sealed enclosure.

*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 driver may significantly exceed that of other manufacturers with high power ratings.

** Distortion is measured at 10% of the rated power (AES Standard).

1. AES Standard (50 to 500 Hz) Program 400 Watts.

2. AES Recommended Practice.

3. Thiele - Small Parameters follow a 400 Watt preconditioning period.

Please note that frequency response measurements are supplied for comparison purposes only and are not a measure of the low frequency performance which may be achievable in a fully optimised system.