Local Stock - Fast Order Processing
Secure Checkout
Wavecor Subwoofer SW070WA02 8 Ohm 3 Inch

Thumbnail Filmstrip of Wavecor Subwoofer SW070WA02 8 Ohm 3 Inch Images

    Purchase Wavecor Subwoofer SW070WA02 8 Ohm 3 Inch

    SKU: Wavecor-Subwoofer-SW070WA02 Wavecor Subwoofer SW070WA02 8 Ohm 3 Inch

    $95.00 each
    Quantity in Basket:  None

     

     



    Wavecor Speaker Driver - SW070WA02 - 8 Ohm 2¾" Alu-Cone Subwoofer

    Description
    The 2¾” transducer SW070WA02 - 8 ohm is designed especially for high quality multimedia and lifestyle speakers, where space otherwise usually does not allow for "real bass".

    Ideal for combining with the Wavecor FR070WA 2¾” fullrange or any good tweeter.

     

    Features

    • True subwoofer design for vented or sealed enclosures
    • Dual neodymium magnet structure for high efficiency and almost ideal magnetically shielding
    • Black anodised alu cone for better heat transfer
    • Vented polymer chassis for lower air flow speed reducing audible distortion
    • Vented voice coil former for reduced distortion and compression
    • Heavy-duty black fibre glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
    • Large motor with 26 mm voice coil diameter for better control and power handling
    • 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 and Impedance 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.

    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
        Before Burn-in After Burn-in  
      Nominal size inch
      Nominal impedance 8 Ohm
      Recommended max upper frequency limit
    4 kHz
    1 Sensitivity, 2.83V/1m (average SPL in range 200-1000 kHz) 81 dB
    2 Power handling, short term, IEC 268-5, 6 kHz, no additional filtering   W
    2 Power handling, long term, IEC 268-5, 6 kHz, no additional filtering   W
    2 Power handling, continuous, IEC 268-5, 6 kHz, no additional filtering 15 W
      Effective radiating area, Sd 22 cm2
    3, 6 Resonance frequency (free air, no baffle), Fs 87 76 Hz
      Moving mass, incl. air (free air, no baffle), Mms 3.4 g
    3 Force factor, Bxl 4.75 -
    3, 6 Suspension compliance, Cms 0.98 1.3 mm/N
    3, 6 Equivalent air volume, Vas 0.68 0.89 lit
    3, 6 Mechanical resistance, RMS 0.30 0.28  
    3, 6 Mechanical Q, Qms 6.2 5.7 -
    3, 6 Electrical Q, Qes 0.53 0.46 -
    3, 6 Total Q, Qts 0.49 0.42 -
    4 Voice coil resistance, RDC 6.4 Ohm
    5 Voice coil inductance, Le (measured at 10 kHz) 0.28 mH
      Voice coil inside diameter 26 mm
      Voice coil winding height 9 mm
      Air gap height 4 mm
      Magnet weight (dual neodymium) 35+8 g
      Total unit net weight excl. packaging 0.16 kg
    3, 5 Krm 0.069 mOhm
    3, 5 Erm 1.04 -
    3, 5 Kxm 7.8 mH
    3, 5 Exm 0.67 -

    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 6.3/8.9 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