Specs Sheet

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dB (1W-1m)
20 50 100 200 500 1k 2k 5k 10k 20k(Hz)
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2
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Ohms (Ω)
20 50 100 200 500 1k 2k 5k 10k 20k(Hz)
NOMINAL DIAMETER POWER HANDLING SENSITIVITY (1W/ 1m) FREQUENCY RESPONSE VOICE COIL DIAMETER MAXIMUM LINEAR EXCURSION
© Precision Devices International Ltd. We operate a policy of continuous research and development and as such published specifications are subject to change without notice.
210220
FREQUENCY RESPONSE AND IMPEDANCE CHARTSFEATURES:
THIELE SMALL Parameters (8 Ω MODEL)
3
GENERAL SPECIFICATIONS
Nominal Diameter 18” / 457.2 mm
Voice Coil Diameter 5.0” / 127 mm
Available Impedances 4 Ohm / 8 Ohm / 16 Ohm
Power Rating
1 2 *
1200 W (A.E.S.)
Peak Power (6dB Crest Factor)* 4800 W (A.E.S.)
Sensitivity (1W - 1m)* 97 dB
Frequency Range 30 Hz - 300 Hz
Recommended Enclosure Volume 125 - 200 Litres
Resonance 32 Hz
Voice Coil Winding Depth 25.00 mm / 0.98”
Magnet Gap Depth 9.0 mm / 0.35”
Flux Density 0.96 Tesla
Magnet Material Ceramic
Voice Coil Material Copper
Former Material Glass Fibre
Dust Dome Material Paper
Suspension Material Fabric
Cone / Surround Material Paper / Fabric
DIMENSIONS
Overall Diameter 473.6 mm
Width Across Flats 458.73 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 182.47 mm
Magnet Diameter 220 mm
MOUNTING INFORMATION
Chassis Shoulder Diameter 414.4 mm
Outer Bolt Circle x6 M8 on 456 mm PCD
WEIGHT
Nett Weight 13.00 kg / 28.66 lb
Shipping Weight 13.50 kg / 29.76 lb
Fs 32 Hz
Re 5.9 Ω
Qms 8.42
Qes 0.423
Qts 0.403
Le
(@ 1 kHz) 3.80 mH
Le
(@ 10 kHz) 1.589 mH
Vas 302 Litres
Mms 157.20 g
Sd 1162 cm
2
Cms 157.40 μm/N
BL 21.00 T/m
Xmax 10.50 mm
Vd 1.220 Litres
Ref. Eciency 2.26%
EBP 75.65 Hz
*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 (30 to 300 Hz) @ 900 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 900 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.
*2.83V. Half space response measured in a 950 Litre sealed enclosure.
• Engineered for minimal weight using traditional ferrite magnet motor.
• 5” High temperature copper voice coil.
• 3 kg Y35 ceramic magnet.
• Double suspension assembly.
• Triple roll surround straight cone geometry.
• Straight cone geometry.
The PD.185C001 is ideally suited to applications where high power handling, long
excursion and perfect linearity is required. Ideal for bass reflex and horn loaded
enclosure systems. The robust mechanical design and construction makes this unit
an ideal choice for fixed or touring applications.
SUB BASS DRIVER
PD.185C001
18” / 457.2 mm 1200 W (A.E.S.) 97 dB 30 Hz - 300 Hz 5.0” / 127 mm 10.50 mm Xmax
PD.185C001 SUB BASS DRIVER