Specifications
- Model Number: BM2500.5
- Nominal Diameter (mm): 250
- Power Capacity (Watt AES): 250
- Sensitivity (dB/watt/m): 96
- Frequency Range (Hz): 45-2500
- Impedance (Ohms): 8 or 16
- BL Factor: 15
- Voice Coil Diameter (mm): 75
- Voice Coil Material: Copper
- Maximum Excursion (mm): 20 (before damage)
- Magnet Assembly Weight (Kg): 8.1
- Effective Moving Mass (Kg): 0.034
- Compliance (M/N): 0.00027
- Volume Displaced (litres): 2
- Connection: Metal Push Terminals
- Chassis: Diecast Aluminum
Mounting Information
| Parameter | Measure | Unit |
| Overall Diameter | 285 | mm |
| Mounting Bolt Circle Diameter | 268 | mm |
| Number and Size of Bolts | 4 | M5 |
| Baffle Cutout Diameter | 253 | mm front mount |
| Baffle Cutout Diameter | 245 | mm rear mount |
| Depth | 111.5 | mm below front flange |
| Depth | 121 | mm total depth |
| Weight | 8.65 | Kg |
Response Curve
Thiele-Small Parameters
| Parameter | Measure | Unit |
| Fs | 52 | Hz |
| Re | 5.2 | Ohms |
| Qa | 6.55 | |
| Qe | 0.26 | |
| Qt | 0.25 | |
| Vas | 43 | litres |
| Xmax | ±4 | mm |
| Sd | 336 | cm² |
| Vd | 134 | cm³ |
| Le | 0.5 | mH |
Suggested Enclosures
| Volume(litres) | Vent Diameters(cm) | Vent Length(cm) | System Q | -3db freq(Hz) |
| 12 | 7.5 | 10 | 7 | 90 |
| 20 | 7.5 | 8 | 7 | 75 |
| 30 | 7.5 | 7 | 7 | 60 |
Factsheet PDF
