Free UK Shipping.
VIP & UK B2B Trade Accounts.
Safe & Secure Payment Methods.
Manufacturer Support.
PDN.2151
Sub Bass Driver
- Heavy-duty cast aluminium chassis for increased rigidity
- Power compression 2dB at rated power
- A B/L in excess of 35 T/m
- Double suspension system
- Suitable for horn loaded or bass reflex designs
- Lightweight neodymium magnet
Diameter
21" / 530 mm
Coil Diameter
6" / 152 mm
Power Rating
1000 w (A.E.S.)
Frequency Range
30 Hz - 1 kHz
Sensitivity
98 dB
Xmax
10.5 mm
Find Distributors and Retailers
Download Datasheet PDF
Ask a Question About the PDN.2151
General Specifications
| Type | Sub Bass Driver |
| Available Impedance | 4 Ω/ 8 Ω/ 16 Ω |
| Nominal Diameter | 21" / 530 mm |
| Voice Coil Diameter | 6" / 152 mm |
| Peak Power (6 dB Crest Factor) * | 4000 w (A.E.S.) |
| Power Rating 1 2 * | 1000 w (A.E.S.) |
| Sensitivity (1W/ 1m) * | 98 dB |
| Frequency Range | 30 Hz - 1 kHz |
| Resonance | 31.44 Hz |
| Voice Coil Winding Depth | 30 mm / 1.18" |
| Recommended Enclosure Volume | 130 - 350 Litres |
| Flux Density | 1.1 Tesla |
| Magnet Material | Neodymium |
| Magnet Gap Depth | 15 mm / 0.59" |
| Former Material | Glass Fibre |
| Dust Dome Material | Paper |
| Voice Coil Material | Copper |
| Cone Material | Paper |
| Suspension Material | Dual Fabric |
| Surround Material | Fabric |
Thiele Small Parameters
| Fs | 31.44 Hz |
| Re | 5.35 Ω |
| Qms | 18.3 |
| Qes | 0.28 |
| Qts | 0.28 |
| Le (@ 1 kHz) | 1.9 mh |
| Vas | 303.35 litres |
| Mms | 342.86 g |
| Sd | 1698.23 cm2 |
| Cms | 74.67 µm/N |
| BL | 35.86 T/m |
| Xmax | 10.5 mm |
| Vd | 1.76 litres |
| Ref. Efficiency | 4.81% |
| EBP | 112.28 Hz |
Dimensions & Mounting
| Overall Diameter | 550 mm |
| Width Across Flats | 532 mm |
| Flange Height | 14 mm |
| Depth (Excl. Flange) | 204 mm |
| Magnet Diameter | 223 mm |
| Chassis Shoulder Diameter | 492 mm |
| Outer Bolt Circle | 6* M6 on 528mm PCD |
| Inner Bolt Circle | N/A |
Shipping Information
| Nett Weight | 16.3 Kg / 35.93 lb. |
| Shipping Weight | 21.25 Kg / 46.85 lb. |
Notes
*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.
1. AES Standard (30 to 300 Hz) Program 2000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 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.
1. AES Standard (30 to 300 Hz) Program 2000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 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.
Frequency Response & Impedance
What people are saying about the PDN.2151
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.
francis –
I have 10 of them need recones and one of them the magnet has moved please advise
admin –
Please contact us or your local retailer to see if recone kits are available.
If the magnet has shifted then the units cannot be repaired.
Tony –
Hello I would have liked to buy 8 pd2151 in neodymium would it be possible thank you
admin –
Hi Tony,
Thanks for you post. We have sent you an email to discuss this further.