Free UK Shipping.

VIP & UK B2B Trade Accounts.

Safe & Secure Payment Methods.

Manufacturer Support.


Sub Bass Driver
  • 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
Klippel Verifeid


18" / 457.2 mm

Coil Diameter

5.0" / 127 mm

Power Rating

1200 W (A.E.S.)

Frequency Range

30 Hz - 300 Hz


97 dB


10.5 mm

The PD.185C001 is ideally suited to applications where high power handling, long excursion and perfect linearity is required. Completely versatile in bass reflex and horn loaded cabinets. TSP’s naturally suit all PD.186 applications but offer increased horsepower and punch.

Conceived around the famed PD.186. The PD.185C001 engineering has been focused around minimal weight using a traditional ferrite magnet motor system. Weighing in only 13Kg, it's lighter than some neodymium models available on the market today! The robust mechanical design and construction makes this unit an ideal choice for fixed or touring applications.

£220.00 MRRP Ex. VAT

Find Distributors and Retailers

Download Datasheet PDF


Ask a Question About the PD.185C001

Frequency Response Graph
Impedance GRAPH
General Specifications
Type Sub Bass Driver
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Nominal Diameter 18" / 457.2 mm
Voice Coil Diameter 5.0" / 127 mm
Peak Power (6 dB Crest Factor) * 4800 W (A.E.S.)
Power Rating 1 2 * 1200 W (A.E.S.)
Sensitivity (1W/ 1m) * 97 dB
Frequency Range 30 Hz - 300 Hz
Resonance 32 Hz
Voice Coil Winding Depth 0.98" / 25.00 mm
Recommended Enclosure Volume 125 - 200 Litres
Flux Density 0.96 Tesla
Magnet Material Ceramic
Magnet Gap Depth 9.00 mm / 0.35"
Former Material Glass Fibre
Dust Dome Material Paper
Voice Coil Material Copper
Cone Material Paper
Suspension Material Fabric
Surround Material Fabric
Thiele Small Parameters
Fs 32 Hz
Re 5.9 Ω
Qms 8.42
Qes 0.423
Qts 0.403
Le (@ 1 kHz) 3.800 mH
Vas 302 Litres
Mms 157.20 g
Sd 1162 cm2
Cms 157.40 µm/N
BL 21.00 T/m
Xmax 10.5 mm
Vd 1.220 Litres
Ref. Efficiency 2.26%
EBP 75.65 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 182.47 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle x6 M8 on 456 mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 13.00 Kg / 28.66 lb
Shipping Weight 13.50 Kg / 29.76 lb
* 2.83V. Half space response measured in a 950 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 (30 to 300 Hz) Program 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.
What people are saying about the PD.185C001

Please take a moment to share your feedback with us. We love to hear your success stories and comments about our products. It can really help us, and other PD customers, on our continuing mission of creating better sound.


Be the first to review “PD.185C001”

Your email address will not be published. Required fields are marked *

Got a question about the PD.185C001 ? Send us a message...

12 + 11 =

Pin It on Pinterest

Share This