| Power |
Diameter |
Impedence |
|
300
watts
|
12" - 30.48 cms
|
8 or 16
ohms |
 |
Heavy duty 12" cast aluminium frame with extra wide flange for increased rigidity |
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|
|
300WRMS |
|
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|
|
2.5” copper voice coil assembly |
|
|
|
|
90 oz. ceramic magnet |
|
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A B/L in excess of 23T/m for dynamic voicing |
|
|
|
|
| Description: |
|
|
This general purpose bass/low mid range transducer is anything but standard and excels in a variety of systems being perfectly suited to either direct radiating or horn loaded mid/high applications. The PD.121 covers the critical vocal range in a single unit and is particularly effective at faithfully reproducing the pattern of powerful low end male vocals.
The PD.121 perfectly compliments our 15", 18", 21" and 24" transducers as part of a two- or three-way system. |
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| PD121 Technical Information |
 |
| Nominal Diameter |
30cm (12") |
| Power rating |
300 Watts |
| Frequency range |
Up to 6 kHz |
| Nominal Impedance |
8 or 16 Ohms |
| Sensitivity (1 W 1 M) |
100 dB |
| Resonance |
60 Hz |
| Enc. Vol. Recommended |
10 to 60 Litres |
| Displacement limit |
10 mm (0.40”) |
| Voice coil diameter |
63 mm (2.52”) |
| Voice coil |
Copper |
| Voice coil winding depth |
12 mm (0.48”) |
| Suspension (Spider) |
Fabric |
| Magnet gap depth |
9 mm (0.36”) |
| Magnet material/mass |
Ceramic/2.5 Kg (90 oz.) |
| Magnetic assembly total mass |
7.8 Kg (17.24 Lbs.) |
| Flux Density |
15,000 Gauss |
| Cone type/material |
Curvilinear Smooth Paper |
| Surround |
Fabric |
| Dust dome |
Paper |
| Connectors |
Spring loaded push button metal bodied |
| Polarity |
Positive Voltage on Red Terminal gives forward cone motion |
|
| Thiele-Small Parameters |
|
| Fs |
59 Hz |
| Xmax |
2 mm |
| Revc |
5.7 Ohms |
| Vd |
1.06 x10-4 m3 |
| Qts |
0.201 |
| No |
5.1% |
| Qms |
4.96 |
| Pmx |
300 Watts |
| Qes |
0.209 |
| Cms |
135 µM/N |
| Vas |
54 Litres |
| Mms |
54 grams |
| Sd |
530 sq cm |
| BL |
23.36 T/m |
|
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