Customer Service: 01308 898 763
  • Features:
    The B2500.1 is the ultimate 250 mm high power studio bass driver. This unit is intended for state of the art studio systems where dynamic range and analytical clarity are essential.
  • Benefits:
    The B2500.1 uses a massive magnet with symmetrical magnetic field and extended pole for maximum linearity. Matched dual rear suspensions maintain stability at high power levels. The cone is exceptionally rigid ensuring true piston integrity.
Specifications
  • Model Number: B2500.1
  • Nominal Diameter (mm): 250
  • Power Capacity (Watt AES): 250
  • Sensitivity (dB/watt/m): 88
  • Frequency Range (Hz): 25-1000
  • Impedance (Ohms): 8,16 or 24
  • BL Factor: 18.7
  • Voice Coil Diameter (mm): 75
  • Voice Coil Material: Copper
  • Maximum Excursion (mm): 25 (before damage)
  • Magnet Assembly Weight (Kg): 8.1
  • Effective Moving Mass (Kg): 0.104
  • Compliance (M/N): 0.00016
  • Volume Displaced (litres): 2
  • Connection: Metal Push Terminals
  • Chassis:Painted 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

B2500.1_Line

Response Curve

B2500.1_Resp

Thiele-Small Parameters
Parameter Measure Unit
Fs 39 Hz
Re 5.7 Ohms
Qa 2.21
Qe 0.41
Qt 0.34
Vas 26 litres
Xmax ±5.5 mm
Sd 337 cm²
Vd 185 cm³
Le 0.9 mH
Suggested Enclosures
Volume(litres) Vent Diameters(cm) Vent Length(cm) System Q -3db freq(Hz)
15 6.4 22 7 50
28 7.5 29 7 39
40 7.5 27 7 34

Factsheet PDF

pdf


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