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Wavecor FR070WA03 2¾” fullrange alu-cone 4 ohm View larger

Wavecor FR070WA03 2¾” fullrange alu-cone 4 ohm

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Wavecor FR070WA03 2¾” fullrange alu-cone 4 ohm

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46,00 €

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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

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