FR070WA03

    Wavecor FR070WA03 2¾” fullrange alu-cone 4 ohm

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    €58.00
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    Wavecor FR070WA03 2¾” fullrange alu-cone 4 ohm

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    The 2¾” transducers FR070WA03 (4 ohm) and FR070WA04 (8 ohm) were designed especially for high quality multimedia and lifestyle speakers, where sound reproduction without compromises is required.

    • True full-range design with on-axis output to beyond 25kHz
    • 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
    • Optimized off-axis response
    • Vented polymer 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
    • Notes

        Parameter

      FR070WA03

      FR070WA04

      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, 5

      Sensitivity, 2.83V/1m (average SPL in range 200 - 10,000 Hz)

      86

      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

      10

      10

      [W]

       

      Effective radiating area, Sd

      21

      21

      [sq.cm]

      3, 5, 7

      Resonance frequency (free air, no baffle), Fs

      121

      114

      124

      117

      [Hz]

       

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

      2.0

      1.9

      [g]

      3

      Force factor, Bxl

      2.3

      2.9

      [N/A]

      3, 5, 7

      Suspension compliance, Cms

      0.87

      0.97

      0.87

      0.97

      [mm/N]

      3, 5, 7

      Equivalent air volume, Vas

      0.54

      0.61

      0.54

      0.61

      [lit.]

      3, 5, 7

      Mechanical resistance, Rms

      0.11

      0.11

      0.11

      0.11

      [Ns/m]

      3, 5, 7

      Mechanical Q, Qms

      13.8

      13.1

      13.4

      12.7

      [-]

      3, 5, 7

      Electrical Q, Qes

      0.99

      0.94

      1.13

      1.07

      [-]

      3, 5, 7

      Total Q, Qts

      0.92

      0.87

      1.04

      0.98

      [-]

      4

      Voice coil resistance, RDC

      3.45

      6.4

      [ohm]

      6

      Voice coil inductance, Le(measured at 10 kHz)

      71

      110

      [μH]

       

      Voice coil inside diameter

      22

      22

      [mm]

       

      Voice coil winding height

      7

      7

      [mm]

       

      Air gap height

      3

      3

      [mm]

       

      Magnet weight

      115

      115

      [g]

       

      Total unit net weight excl. packaging

      0.29

      0.29

      [kg]

      3, 6

      Krm

       

       

      [mohm]

      3, 6

      Erm

       

       

      [-]

      3, 6

      Kxm

       

       

      [mH]

      3, 6

      Exm

       

       

      [-]

    • FR070WA03-SPL-&-IMP-responsFR070WA03_04-outline-drawing1FR070WA03_04-terminals
    FR070WA03
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