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Wavecor WF120BD03-01 (ea.)

Wavecor WF120BD03-01 (ea.)
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Wavecor WF120BD03-01 (ea.)

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4¾", Balanced Drive, die cast alu, paper cone, 90 mm ferrite, 1" VC, 4 ohm, individual packaging

Wavecor WF120BD03-01 (ea.) midbass driver's product information

The 4¾” transducers WF120BD03 (4 ohm) and WF120BD04 (8 ohm) were designed as high performance bass and midrange units for very compact monitors and high-end hi-fi speakers.

Features
  • Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
  • Copper cap on center pole to reduce voice coil inductance and to minimize variations in voice coil inductance as a function of voice coil position
  • Black coated semi-air-dried paper cone
  • Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
  • Vented voice coil former for reduced distortion and compression
  • Vented center pole with dual flares for reduced noise level at large cone excursions
  • Heavy-duty black fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
  • Large motor with 1¼” voice coil diameter for better control and power handling
  • Built-in alu field-stabilizing ring for reduced distortion at high levels
  • Low-loss suspension (high Qm) for better reproduction of details and dynamics
  • Black motor parts for better heat transfer to the surrounding air
  • Conex spider for better durability under extreme conditions
  • Gold plated terminals to ensure long-term trouble free connection
Wavecor WF120BD03-01 (ea.) midbass driver's specifications
Nominal size4¾ [inch.]
Nominal impedance4 [ohm]
Recommended max. upper frequency limit4 [kHz]
Sensitivity, 2.83V/1m (average SPL in range 400 - 1,000 Hz)84.5 [dB]
Power handling, continuous, IEC 268-5, no additional filtering60 [W]
Effective radiating area, Sd52 [sq.cm]
Resonance frequency (free air, no baffle), Fs43 [Hz]
Moving mass, incl. air (free air, no baffle), Mms9.3 [g]
Force factor, Bxl4.9
Suspension compliance, Cms1.47 [mm/N]
Equivalent air volume, Vas5.6 [lit.]
Mechanical Q, Qms7
Electrical Q, Qes0.33
Total Q, Qts0.32
Voice coil resistance, RDC3.2 [ohm]
Voice coil inductance, Le (measured at 10 kHz)0.12 [mH]
Voice coil inside diameter32 [mm]
Voice coil winding height12 [mm]
Air gap height4 [mm]
Magnet weight370 [g]
Total unit net weight excl. packaging1.0 [kg]

Wavecor WF120BD03-01 (ea.) Midbass Driver additional photos
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More information about Wavecor WF120BD03-01 (ea.) Midbass
 More about Wavecor
 Wavecor's official web site: http://www.wavecor.com/

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