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Wavecor FR090WA01 3½” alu-cone fullrange 4 ohm View larger

Wavecor FR090WA02 3½” alu-cone fullrange 8 ohm

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Wavecor FR090WA02 3½” alu-cone fullrange 8 ohm

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The 3½” transducers FR090WA01 (4 ohm) and FR090WA02 (8 ohm) were designed especially for high quality multimedia and lifestyle speakers, where sound reproduction without compromises is required while still keeping size small.

  • True full-range design with on-axis output to beyond 20kHz
  • 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
  • Black anodized alu cone for better heat transfer
  • Vented steel chassis for lower air flow speed reducing audible distortion
  • Vented voice coil former for reduced distortion and compression
  • Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
  • Large motor with 22 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
  • Delivered with EVA gasket attached for hassle-free mounting and secure cabinet sealing
  • Notes

      Parameter

    FR090WA01

    FR090WA02

    Unit

    Before burn-in

    After burn-in

    Before burn-in

    After burn-in

     

    Nominal size

    [inch.]

     

    Nominal impedance

    4

    8

    [ohm]

     

    Recommended max. upper frequency limit

    full range

    full range

    [kHz]

    1, 4

    Sensitivity, 2.83V/1m (average SPL in range 200 - 8,000 Hz)

    86.5

    83.5

    [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

    10

    10

    [W]

     

    Effective radiating area, Sd

    36

    36

    [sq.cm]

    3, 4, 6

    Resonance frequency (free air, no baffle), Fs

    113

    109

    114

    110

    [Hz]

     

    Moving mass, incl. air (free air, no baffle), Mms

    3.45

    3.35

    [g]

    3

    Force factor, Bxl

    2.75

    3.4

    [N/A]

    3, 4, 6

    Suspension compliance, Cms

    0.58

    0.62

    0.58

    0.62

    [mm/N]

    3, 4, 6

    Equivalent air volume, Vas

    1.07

    1.14

    1.07

    1.14

    [lit.]

    3, 4, 6

    Mechanical resistance, Rms

    0.41

    0.40

    0.41

    0.41

    [Ns/m]

    3, 4, 6

    Mechanical Q, Qms

    6.0

    5.9

    5.9

    5.8

    [-]

    3, 4, 6

    Electrical Q, Qes

    1.03

    1.0

    1.27

    1.23

    [-]

    3, 4, 6

    Total Q, Qts

    0.88

    0.85

    1.04

    1.01

    [-]

    4

    Voice coil resistance, RDC

    3.2

    6.1

    [ohm]

    5

    Voice coil inductance, Le(measured at 10 kHz)

    76

    127

    [μH]

     

    Voice coil inside diameter

    22

    22

    [mm]

     

    Voice coil winding height

    7.5

    7.5

    [mm]

     

    Air gap height

    3

    3

    [mm]

     

    Theoretical linear motor stroke, Xmax

    ±2.25

    ±2.25

    [mm]

     

    Magnet weight

    160

    160

    [g]

     

    Total unit net weight excl. packaging

    0.40

    0.40

    [kg]

    3, 4, 5

    Krm

     

     

    [mohm]

    3, 4, 5

    Erm

     

     

    [-]

    3, 4, 5

    Kxm

     

     

    [mH]

    3, 4, 5

    Exm

     

     

    [-]

    FR090WA01_02-outline-drawingFR090WA02-SPL-&-imp-responsTerminals

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