Specification Sheet - Punch BP 15/250
15" - 250 W Bass Speakers Loudspeaker
Punch BP 15/250 -
8Ω
| General Characteristics | ||
|---|---|---|
| Nominal Overall Diameter | 385 mm | 15 in |
| Nominal Voice Coil Diameter | 65 mm | 3 in |
| Magnet Weight | 1450 g | 51 oz |
| Overall Weight | 5.4 kg | 11.9 lbs |
| Flux Density | 1.15 T | |
| Voice Coil Winding Depth | 13 mm | 0.51 in |
| Magnetic Gap Depth | 8 mm | 0.31 in |
| Thiele-Small Parameters |
8Ω
|
||
|---|---|---|---|
| Voice Coil DC Resistance | RE | 6.6 | Ω |
| Resonance Frequency | ƒS | 47 | Hz |
| Mechanical Q Factor | QMS | 4.26 | |
| Total Q Factor | QTS | 0.51 | |
| Mechanical Moving Mass | MMS | 69.7 | g |
| Mechanical Compliance | CMS | 164 | µm/N |
| Force Factor | BxL | 15.31 | Wb/m |
| Equivalent Acoustic Volume | VAS | 133.1 | lt. |
| Maximum Linear Displacement | XMAX | ±3.4 | mm |
| Excursion Limit | XVAR | ±7 | mm |
| Reference Efficiency | nO | 2.3 | % |
| Diaphragm Area | SD | 754.8 | cm2 |
| Voice Coil Inductance @ 1kHz | LE | 1.07 | mH |
| Electrical Q Factor | QES | 0.58 | |
| Constructive Characteristics | ||
|---|---|---|
| Magnet | Ferrite | |
| Voice Coil Winding | Copper | |
| Voice Coil Former | Aluminum | |
| 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 | 96.7 | dB | |
Product Dimensions
