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Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch

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    Purchase Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch

    SKU: Wavecor-Subwoofer-SW223BD02 Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch

    $325.00 each - on backorder
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    Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch.
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    Wavecor Speaker Driver - SW223BD02 - 4 Ohm 8¾" Alu-Cone Subwoofer

    Description
    The 8¾" transducer SW223BD02 - 4 Ohm was designed specifically for high performance compact subwoofer applications where sound quality and low distortion are the priorities.

     

    Features

    • Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
    • Extremely large linear stroke, Xmax = ±10.7 mm, ensuring low distortion at high output levels
    • Very rigid black aluminium cone to ensure piston motion at high levels and for better heat transfer at high continuous power levels
    • Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
    • Heavy-duty black fibre glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
    • Large motor with 2" 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 plated cone and 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 for SPL
    Driver mounting: Flush in infinite baffle
    Microphone distance: 1.0 m
    Input level: 2.83 VRMS
    Smoothing: 1/6 oct.
     
    SW146WA01 Wavecor Subwoofer

    Loudspeaker Impedance Response Graph
    Measuring conditions for 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 inch
      Nominal impedance 4 Ohm
      Recommended max. upper frequency limit
    1000 kHz
    1, 3 Sensitivity, 2.83V/1m (calculated from T/S parameters) 83 dB
    2 Power handling, short term, IEC 268-5, no additional filtering   W
    2 Power handling, long term, IEC 268-5, no additional filtering   W
    2 Power handling, continuous, IEC 268-5, no additional filtering. 200 W
      Effective radiating area, Sd 206 cm2
    3, 6 Resonance frequency (free air, no baffle), Fs 24 Hz
      Moving mass, incl. air (free air, no baffle), Mms 97 g
    3 Force factor, Bxl 11.0 -
    3, 6 Suspension compliance, Cms 0.47 mm/N
    3, 6 Equivalent air volume, Vas 28 lit.
    3, 6 Mechanical resistance, Rms 1.35 Ns/M
    3, 6 Mechanical Q, Qms 10.7 -
    3, 6 Electrical Q, Qes 0.42 -
    3, 6 Total Q, Qts 0.40 -
    4 Voice coil resistance, RDC 3.5 Ohm
    5 Voice coil inductance, Le (measured at 1 kHz) 0.80 mH
      Voice coil inside diameter 51 mm
      Voice coil winding height 29.4 mm
      Air gap height 6 mm
      Theoretical linear motor stroke, Xmax ±11.7 mm
      Magnet weight   g
      Total unit net weight excl. packaging 4.4 kg
    3, 5 Krm 84 mOhm
    3, 5 Erm 0.37 -
    3, 5 Kxm 20 mH
    3, 5 Exm 0.57 -

    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 20 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 (www.linearx.com), involving parameters Krm, Erm, Kxm, and Exm.
    Note 6 After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 10/14.1 VRMS (4/8 ohm version). The unit is not burned in before shipping.

     

    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