Wavecor WF120BD09

€149.00 *

Prices incl. VAT plus shipping costs

Delivery time approx. 5 working days

  • wf120bd09
Wavecor WF120BD09 Paper/Glass Fiber 4 Ohm   The 4¾” transducers... more
Product information "Wavecor WF120BD09"

Wavecor WF120BD09 Paper/Glass Fiber 4 Ohm

 

The 4¾” transducers WF120BD05/WF120BD09 (4 ohm) and WF120BD06/WF120BD10 (8 ohm) were designed as high performance bass and midrange units for very compact monitors and high-end hi-fi speakers.
The only difference between WF120BD05 and WF120BD09 is the shape of the mounting flange of the frames. WF120BD06 and WF120BD10 differ in the same way.

 

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
  • Cone made of a new paper/glass fiber mix with improved consistency and stability
  • 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

  • power handling (continuous/programme) = 60 W
  • frequency range = 60-3000 Hz
  • resonance frequency fs = 48 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 87 dB (2,83V; 1m)
  • DC resistance Re = 3,2 Ohm
  • force factor BL = 4,1 N/A
  • voice coil inductance L = 0,087 mH
  • effective piston radiating area Sd = 54 cm2
  • effective mechanical mass incl. air load mms = 7,3 g
  • equivalent volume of compliance Vas = 6,2 l
  • total Q factor Qts = 0,4 (Qms=7,4, Qes=0,42)
  • voice coil diameter = 32 mm
  • maximum peak linear excursion vibration xlin = +/- 4 mm
  • mounting diameter d = 100 mm
  • overall diameter d = 120 mm
  • mounting depth (not countersunk) t = 72 mm
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