Specification Sheet - P12Q
12" - 40 W Vintage Alnico Loudspeaker
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 306 mm | 12 in |
| Nominal Voice Coil Diameter | 32 mm | 1.26 in |
| Magnet Weight | 300 g | 11 oz |
| Overall Weight | 1.9 kg | 4.19 lbs |
| Flux Density | 0.98 T | |
| Voice Coil Winding Depth | 8 mm | 0.31 in |
| Magnetic Gap Depth | 6 mm | 0.24 in |
| Thiele-Small Parameters |
8Ω
|
16Ω
|
32Ω
|
||
|---|---|---|---|---|---|
| Voice Coil DC Resistance | RE | 5.6 | 12.45 | 25.2 | Ω |
| Resonance Frequency | ƒS | 90.5 | 90 | 85.6 | Hz |
| Mechanical Q Factor | QMS | 11.57 | 12.68 | 10.94 | |
| Total Q Factor | QTS | 2.03 | 2.3 | 2.55 | |
| Mechanical Moving Mass | MMS | 26.8 | 25.9 | 25.3 | g |
| Mechanical Compliance | CMS | 115 | 122 | 138 | µm/N |
| Force Factor | BxL | 5.88 | 8.05 | 10.15 | Wb/m |
| Equivalent Acoustic Volume | VAS | 39.5 | 41.2 | 46.6 | lt. |
| Maximum Linear Displacement | XMAX | ±1 | ±1 | ±1 | mm |
| Reference Efficiency | nO | 1.42 | 1.02 | 0.84 | % |
| Diaphragm Area | SD | 490.9 | 490.9 | 490 | cm2 |
| Losses Electrical Resistance | RES | 25.5 | 56.3 | 82.7 | Ω |
| Voice Coil Inductance @ 1kHz | LE | 0.67 | 0.6 | 1.59 | mH |
| Electrical Q Factor | QES | 2.46 | 2.81 | 3.33 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Alnico | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Nomex | |
| Cone Material | Paper | |
| Surround Material | Integrated Paper | |
| Dust Dome Material | Solid Paper | |
| Basket Material | Pressed Sheet Steel | |
| Surround Treatment | No | |
| Electrical Characteristics |
8Ω
|
16Ω
|
32Ω
|
||
|---|---|---|---|---|---|
| Nominal Impedance | 8 | 16 | 32 | Ω | |
| Rated Power | 40 | 40 | 40 | W | |
| Musical Power | 80 | 80 | 80 | W | |
| [email protected],1m | 94.4 | 96.1 | 92.3 | dB | |
Product Dimensions
