Specification Sheet - P12R
12" - 25 W Vintage Alnico Loudspeaker
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 307 mm | 12 in |
| Nominal Voice Coil Diameter | 25 mm | 0.98 in |
| Magnet Weight | 200 g | 7 oz |
| Overall Weight | 1.5 kg | 3.31 lbs |
| Flux Density | 0.96 T | |
| Voice Coil Winding Depth | 8 mm | 0.31 in |
| Magnetic Gap Depth | 6 mm | 0.24 in |
| Thiele-Small Parameters |
8Ω
|
16Ω
|
||
|---|---|---|---|---|
| Voice Coil DC Resistance | RE | 6.05 | 12 | Ω |
| Resonance Frequency | ƒS | 80 | 77 | Hz |
| Mechanical Q Factor | QMS | 13.07 | 12.53 | |
| Total Q Factor | QTS | 2.1 | 2.2 | |
| Mechanical Moving Mass | MMS | 25.2 | 19.9 | g |
| Mechanical Compliance | CMS | 157 | 214 | µm/N |
| Force Factor | BxL | 5.53 | 6.68 | Wb/m |
| Equivalent Acoustic Volume | VAS | 54 | 72.6 | lt. |
| Maximum Linear Displacement | XMAX | ±1 | ±0.75 | mm |
| Reference Efficiency | nO | 1.56 | 1.19 | % |
| Diaphragm Area | SD | 490.9 | 490.8 | cm2 |
| Losses Electrical Resistance | RES | 39 | 58 | Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.5 | 0.84 | mH |
| Electrical Q Factor | QES | 2.50 | 2.67 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Alnico | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Kapton | |
| Cone Material | Paper | |
| Surround Material | Integrated Paper | |
| Dust Dome Material | Solid Paper | |
| Basket Material | Pressed Sheet Steel | |
| Surround Treatment | No | |
| Electrical Characteristics |
8Ω
|
16Ω
|
||
|---|---|---|---|---|
| Nominal Impedance | 8 | 16 | Ω | |
| Rated Power | 25 | 25 | W | |
| Musical Power | 50 | 50 | W | |
| Sensitivity@1W,1m | 93.7 | 94 | dB | |
Product Dimensions
