Specification Sheet - Punch BP 12/250
12" - 250 W Bass Speakers Loudspeaker
Punch BP 12/250 -
8Ω
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 318 mm | 13 in |
| Nominal Voice Coil Diameter | 65 mm | 3 in |
| Magnet Weight | 1450 g | 51 oz |
| Overall Weight | 4.8 kg | 10.58 lbs |
| Flux Density | 1.15 T | |
| Voice Coil Winding Depth | 12 mm | 0.47 in |
| Magnetic Gap Depth | 10 mm | 0.39 in |
| Thiele-Small Parameters |
8Ω
|
||
|---|---|---|---|
| Voice Coil DC Resistance | RE | 6.21 | Ω |
| Resonance Frequency | ƒS | 50.2 | Hz |
| Mechanical Q Factor | QMS | 5.14 | |
| Total Q Factor | QTS | 0.32 | |
| Mechanical Moving Mass | MMS | 46.6 | g |
| Mechanical Compliance | CMS | 216 | µm/N |
| Force Factor | BxL | 16.4 | Wb/m |
| Equivalent Acoustic Volume | VAS | 73.5 | lt. |
| Maximum Linear Displacement | XMAX | ±3.1 | mm |
| Excursion Limit | XVAR | ±5.5 | mm |
| Reference Efficiency | nO | 2.64 | % |
| Diaphragm Area | SD | 490.9 | cm2 |
| Voice Coil Inductance @ 1kHz | LE | 0.94 | mH |
| Electrical Q Factor | QES | 0.34 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Ferrite | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Kapton | |
| Cone Material | Paper | |
| Surround Material | Treated Cloth | |
| Dust Dome Material | Solid Paper | |
| Basket Material | Pressed Sheet Steel | |
| Surround Treatment | No | |
| Electrical Characteristics |
8Ω
|
||
|---|---|---|---|
| Nominal Impedance | 8 | Ω | |
| Rated Power | 250 | W | |
| Musical Power | 500 | W | |
| Sensitivity@1W,1m | 97.5 | dB | |
Product Dimensions
