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Wavecor WF152BD05 - 4 Ohm 6in. Glass Fibre Cone Mid-Woofer

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    Purchase Wavecor WF152BD05 - 4 Ohm 6in. Glass Fibre Cone Mid-Woofer

    SKU: Wavecor-Mid-Woofer-WF152BD05 Wavecor WF152BD05 - 4 Ohm 6in. Glass Fibre Cone Mid-Woofer

    $125.00 each
    Brand: Wavecor
    Quantity in Basket:  None


    7 available.

    Wavecor Speaker Driver - WF152BD05- 4 Ohm 6" Glass Fibre Cone Mid-Woofer

    The 6" transducers WF152BD05 (4 ohm) and WF152BD06 (8 ohm) were designed as high performance bass and midrange units for compact monitors and high-end hi-fi speakers.



    • 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


    Frequency SPL and Impedance Response Graphs

    Loudspeaker Frequency Response Graph
    Loudspeaker Frequency Response Graph
    Measuring conditions, SPL
    Driver mounting: Flush in infinite baffle
    Microphone distance: 1.0 m
    Input level: 2.83 VRMS
    Smoothing: 1/6 oct.

    Loudspeaker Impedance Response Graph
    Measuring conditions, impedance
    Driver mounting: Free air, no baffle
    Input signal: Stepped sine wave, semi-current-drive, nominal current 2 mA
    Smoothing: None


    Technical Specifications

    Notes Parameter   Value Unit


      Nominal size 6 inch
      Nominal impedance 4 Ohm
      Recommended max. upper frequency limit
    3 kHz
    1, 4 Sensitivity, 2.83V/1m (average SPL in range 300 - 1,000 kHz) 90 dB
    2, 4 Power handling, short term, IEC 268-5, no additional filtering 230 W
    2, 4 Power handling, long term, IEC 268-5, no additional filtering 200 W
    2, 4 Power handling, continuous, IEC 268-5, no additional filtering. 100 W
      Effective radiating area, Sd 93 cm2
    3, 4, 6 Resonance frequency (free air, no baffle), Fs 50 44.5 Hz
      Moving mass, incl. air (free air, no baffle), Mms 13.5 g
    3, 4 Force factor, Bxl 6.35 -
    3, 4, 6 Suspension compliance, Cms 0.75 0.94 mm/N
    3, 4, 6 Equivalent air volume, Vas 9.2 11.5 lit.
    3, 4, 6 Mechanical resistance, Rms 0.41 0.46 Ns/M
    3, 4, 6 Mechanical Q, Qms 10.3 8.2 -
    3, 4, 6 Electrical Q, Qes 0.34 0.30 -
    3, 4, 6 Total Q, Qts 0.33 0.29 -
    4 Voice coil resistance, RDC 3.2 Ohm
    5 Voice coil inductance, Le (measured at 10 kHz) 0.11 mH
      Voice coil inside diameter 32 mm
      Voice coil winding height 14 mm
      Air gap height 5 mm
      Theoretical linear motor stroke, Xmax ±4.5 mm
      Magnet weight 550 g
      Total unit net weight excl. packaging 1.44 kg
    3, 4, 5 Krm 51 mOhm
    3, 4, 5 Erm 0.40 -
    3, 4, 5 Kxm 114 mH
    3, 4, 5 Exm 0.29 -
    Note 1 Measured in infinite baffle.
    Note 2 Tested in free air (no cabinet).
    Note 3 Measured using a semi-constant current source, nominal level 2 mA.
    Note 4 Measured at 25 deg. C
    Note 5 It is generally a rough simplification to assume that loudspeaker transducer voice coils exhibit the characteristics of an inductor. Instead it is a far more accurate approach to use the more advanced model often referred to as the “Wright empirical model”, also used in LEAP-4 as the TSL model (, involving parameters Krm, Erm, Kxm, and Exm. This more accurate transducer model is described in a technical paper (PDF) here.
    Note 6 After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wav


    Driver Nominal Dimensions

    Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)
    Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)


    Terminal Nominal Dimensions

    Loudspeaker Driver Terminal Dimensions and Measurements - all dimensions in mm (approx.)
    Thickness, both terminals: 0.5 mm
    Terminal plating: Gold