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30mm TW030WA12 Wave Guide Dome Ferrite 8 Ohm

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    Purchase 30mm TW030WA12 Wave Guide Dome Ferrite 8 Ohm

    SKU: Wavecor-Tweeter-TW030WA12-01 30mm TW030WA12 Wave Guide Dome Ferrite 8 Ohm

    $99.00 each - on backorder
    Brand: Wavecor
    Quantity in Basket:  None



    Wavecor Speaker Driver - TW030WA11 - 4 Ohm Textile Tweeter with Waveguide

    The TW030WA12 tweeter is designed for the most demanding applications, where low resonance frequency, high sensitivity and power handling, controlled dispersion, and a very wide frequency range are required.



    • Featuring waveguide face plate for controlled dispersion, offering optimized off-axis and power response
    • 30 mm voice coil design with high power handling, and low resonance frequency
    • Copper clad center pole yielding very low voice coil inductance for reduced distortion and increased high frequency output
    • Internal volumes for low resonance frequency and distortion
    • Precision-coated textile diaphragm for improved consistency and high-frequency extension
    • Optimised dome shape for ultra high frequency cutoff
    • Vented voice coil former for reduced distortion and compression
    • Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
    • Build-in cavities under dome/edge to equalize pressure for lower distortion and lower resonance frequency
    • Flexible lead wires for higher power handling and larger excursion
    • Gold plated terminals to prevent oxidation and ensure long-term reliable connection
    • Delivered with foam gasket attached for hassle-free mounting and secure cabinet sealing


    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
    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 30 mm
      Nominal impedance 48 Ohm
      Recommended frequency range
    1.5-25 kHz
    1, 4 Sensitivity, 2.83V/1m (average SPL in range 2 - 20 kHz) 91 dB
    2 Power handling, short term, IEC 268-5, 2.5kHz @ 12dB/oct.   W
    2 Power handling, long term, IEC 268-5, 2.5 kHz @ 12dB/oct.   W
    2 Power handling, continuous, IEC 268-5, 2.5 kHz @ 12dB/oct. 45 W
      Effective radiating area, Sd 11.5 cm2
    3, 4, 6 Resonance frequency (free air, no baffle), Fs 425 kHz
      Moving mass, incl. air (free air, no baffle), Mms 0.40 g
    3 Force factor, Bxl 2.0 -
    3, 4, 6 Suspension compliance, Cms 0.35 mm/N
    3, 4, 6 Equivalent air volume, Vas 66 ml
    3, 4, 6 Mechanical resistance, Rms 0.57 Ns/m
    3, 4, 6 Mechanical Q, Qms 1.9 -
    3, 4, 6 Electrical Q, Qes 1.74 -
    3, 4, 6 Total Q, Qts 0.90 -
    4 Voice coil resistance, RDC 6.5 Ohm
    5 Voice coil inductance, Le (measured at 20 kHz) 35 uH
      Voice coil inside diameter 30.4 mm
      Voice coil winding height 1.7 mm
      Air gap height 2.5 mm
      Theoretical linear motor stroke, Xmax ±0.40 mm
      Magnet weight   g
      Total unit net weight excl. packaging 0.70 kg
    3, 4, 5 Krm 2.8 mOhm
    3, 4, 5 Erm 0.53 -
    3, 4, 5 Kxm 424 mH
    3, 4, 5 Exm 0.036 -
    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 Measured before burn in


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