Wavecor WF120BD03-01

Reference: 11863
4¾", Balanced Drive, die cast alu, paper cone, 90 mm ferrite, 1" VC, 4 ohm, individual packaging
€92.00 / ea, incl. VAT

Wavecor drivers are built for High Resolution Playback, which means that Fine Details and Textures are reproduced without loss and that Dynamics are preserved without compression. The resulting characteristics are precise presentation of Space and Acoustics Of Recording Venue, unheard Transparency, and sharp and precise Focus.

You will not discover all of the main qualities of Wavecor drivers by measuring only but you most certainly will when you start listening.

Product information

The 4¾” transducers Wavecor WF120BD03 (4 ohm) and Wavecor 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
Specifications
Nominal size4¾ inch
Nominal impedance4 Ohm
Recommended max. upper frequency limit4000 Hz
Sensitivity (2.83V/1m)88.5 dB
Power handling, continuous50 W
Effective Piston Area54 cm2
Resonance frequency70 Hz
Moving mass6.55 g
Force factor4.5 N/A
Suspension Compliance0.79 mm/N
VAS3.25 Litres
Mechanical resistance0.49 Ns/m
QMS5.9
QES0.46
QTS0.42
Voice coil resistance3.2 Ohm
Voice coil inductance0.086 mH
Voice coil inside diameter26 mm
Voice coil winding height12 mm
Air gap height4 mm
Magnet weight430 g
Total net weight1.04 kg
Krm27 mohm
Erm0.43
Kxm198 mH
Exm0.17