VLO Speaker Drivers

VLO speaker

Very-Low-Ohm (VLO) speaker

Datasheet (download)

Please order sample here.

BFC-D40-22-1-002

  • 1Ω in DCR
  • Designed for single 18650 Li-ion battery (3.6-4.2V)
    without voltage boost converter
  • Also works great with 2-3 AA-size NiMH cells
  • High power handling : 3.5W (continuous), 8W (transient)
  • Peak-to-peak excursion of 5mm
  • Full-range frequency response
  • NdFeB magnet, paper cone, and PU surround
  • 40mm diameter

Techncal Specification,

Driver Size : D40mm x 22mm
DC Resistance : 1Ω ± 5%
Resonance Frequency (Fs) : 208Hz ± 15%
Continuous Power (thermal) : 3.5W
Max. Power (transient) : 8W
Excursion, peak-to-peak (Xmax) : 5mm
Moving Mass (Mms) : 0.95g
Effective Radiating-area (Sd) : 8cm²
Force Factor (BL) : 0.96
Specific Force Factor (BL/√Re) : 0.96
Compliance, free-air (Cms) : 0.61mm/N ± 15%
Eqv. Compliance Volume (Vas) : 0.43L
Voice Coil Inductance (Le) : 0.01mH
Diaphragm Displacement Volume, peak-to-peak(Vd) : 4.8 cm³
Sensitivity : 83dBSpl
NdFeB magnet rating : N35
NdFeB magnet weight : 8.5g
Voice-coil magnet wire weight : 0.76g
Driver Weight : 34.8g
Voice-coil magnet wire grade : EISV
Max. Voice-coil Temperature : 180°C
Operating Temperature : -10 to 40°C
Storage Temperature : -20 to 70°C