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PD.123ER
Mid Range Driver
- Heavy-duty cast aluminium chassis for increased rigidity
- A B/L in excess of 21 T/m
- Extended mid range response up to 5kHz
- Suitable for either direct radiating or popular horn loaded mid/high applications
- Easy integration with small format compression drivers
Diameter
12" / 300 mm
Coil Diameter
3.0" / 76 mm
Power Rating
400 w (A.E.S.)
Frequency Range
50 Hz - 5 kHz
Sensitivity
97 dB
Xmax
2.5 mm
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General Specifications
| Type | Mid Range Driver |
| Available Impedance | 4 Ω/ 8 Ω/ 16 Ω |
| Nominal Diameter | 12" / 300 mm |
| Voice Coil Diameter | 3.0" / 76 mm |
| Peak Power (6 dB Crest Factor) * | 1600 w (A.E.S.) |
| Power Rating 1 2 * | 400 w (A.E.S.) |
| Sensitivity (1W/ 1m) * | 97 dB |
| Frequency Range | 50 Hz - 5 kHz |
| Resonance | 55.87 Hz |
| Voice Coil Winding Depth | 13 mm / 0.51" |
| Recommended Enclosure Volume | 20 - 80 Litres |
| Flux Density | 1.35 Tesla |
| Magnet Material | Ceramic |
| Magnet Gap Depth | 9 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 | 55.87 Hz |
| Re | 6.74 Ω |
| Qms | 13.03 |
| Qes | 0.3 |
| Qts | 0.29 |
| Le (@ 1 kHz) | 0.25 mh |
| Vas | 54.54 litres |
| Mms | 58.92 g |
| Sd | 530.93 cm2 |
| Cms | 138 µm/N |
| BL | 21.73 T/m |
| Xmax | 2.5 mm |
| Vd | 0.13 litres |
| Ref. Efficiency | 4.23% |
| EBP | 186.23 Hz |
Dimensions & Mounting
| Overall Diameter | 330 mm |
| Width Across Flats | 320.5 mm |
| Flange Height | 10 mm |
| Depth (Excl. Flange) | 117 mm |
| Magnet Diameter | 200 mm |
| Chassis Shoulder Diameter | 282 mm |
| Outer Bolt Circle | 6 * M6 on 318mm PCD |
| Inner Bolt Circle | 8 * M6 on 293mm PCD |
Shipping Information
| Nett Weight | 9.5 Kg / 20.94 lb. |
| Shipping Weight | 9.75 Kg / 21.49 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 (60 to 600 Hz) Program 800 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.
1. AES Standard (60 to 600 Hz) Program 800 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.
Frequency Response & Impedance
What people are saying about the PD.123ER
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.
Micke kajdo –
This is a wery good sounding 12inch. I have these in a double 12 horn+horn mid/high disco system and its a killer!
Deliver mids at the top.