Customer Service: 01308 898 763
  • Features:
    The design and construction of the B2549 is optimised for true sub bass reproduction.
  • Benefits:
    The B2549 uses a heavy, doped cone, large rubber surround and a rigid plastic dustcap that can make high excursions with true piston movement. The stacked magnet assembly is rear vented for cooling and is deep enough to allow exceptional peak to peak travel well in excess of the substantial linear capability without bottoming out.
Specifications
  • Model Number: B2549
  • Nominal Diameter (mm): 250
  • Power Capacity (Watt AES): 200
  • Sensitivity (dB/watt/m): 86
  • Frequency Range (HZ): 18-500 
  • Impedance (Ohms): 4 or 8
  • BL Factor: 14.6
  • Voice Coil Diameter (mm): 50
  • Voice Coil Material: Copper
  • Maximum Excursion (mm): 36
  • Magnet Assembly Weight (Kg): 3.7
  • Effective Moving Mass (Kg): 0.096
  • Compliance (M/N): 0.00047
  • Volume Displaced (Litres): 1.2
  • Connection: Metal push terminals
  • Chassis: Diecast Aluminium
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 122.5 mm below front flange
Depth 132 mm total depth
Weight 5.8 Kg

B2549_Line

Response Curve

B2549_Resp

Thiele-Small Parameters
Parameter Measure Unit
Fs 24 Hz
Re 5.8 Ohms
Qa 1.80
Qe 0.39
Qt 0.32
Vas 74 litres
Xmax ±10 mm
Sd 337 cm²
Vd 337 cm³
Le 0.95 mH
Suggested Enclosures
Volume(litres) Vent Diameters(cm) Vent Length(cm) System Q -3db freq(Hz)
 10  sealed  box  0.7  55
 30  7.5  44  10  30
 100  7.5  31  20  18

Factsheet PDF

pdf


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