Wavecor WF120BD03 4-3/4" Balanced Drive Paper Cone Mid-Woofer 4 Ohm

Price: 6,580.00INR
Ex Tax: 6,580.00INR
Brand:  Wavecor
Product Code:  WF120BD03
Availability:  In Stock
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Wavecor WF120BD03 4-3/4" Balanced Drive Paper Cone Mid-Woofer 4 Ohm

Quick Overview:

The Wavecor WF120BD03 is a 4-3/4" truncated frame paper cone midwoofer that is designed for demanding bass and midrange applications. This driver utilizes balanced drive technology for reduced distortion. It works equally well for high-end hi-fi, high quality home theater systems, and multimedia projects. The WF120BD03 is an ideal choice for a compact 2-way speaker design as a midwoofer.

Product Highlights:

  • Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
  • 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 coated semi-air-dried paper cone
  • Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
  • Large motor for better control and power handling
  • Vented voice coil former for reduced noise level at large cone excursions
  • Heavy-duty black fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
  • 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 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

Product Description:

he Wavecor WF120BD03 is a 4-3/4" truncated frame paper cone midwoofer that is designed for demanding bass and midrange applications. This driver utilizes balanced drive technology for reduced distortion. It works equally well for high-end hi-fi, high quality home theater systems, and multimedia projects. The WF120BD03 is an ideal choice for a compact 2-way speaker design as a midwoofer.

Powered by a large magnet structure, the WF120BD03 is ensured excellent efficiency and optimal T/S parameters. The large 1" voice coil allows excellent high-power handling, both thermally and mechanically. The optimized paper cone ensures large bandwidth and low distortion. Distortion is further reduced by the efficient venting and an aluminum shorting ring and copper cap stabilizing the magnetic field in the air gap.

Product Specification

  Parameter

WF120BD03 /
WF120BD07

WF120BD04 /
WF120BD08

Unit

Before burn-in

After burn-in

Before burn-in

After burn-in

Nominal size

4 3/4

43/4

[inch.]

Nominal impedance

4

8

[ohm]

Recommended max. upper frequency limit

4

4

[kHz]

Sensitivity, 2.83V/1m (average SPL in range 300 - 1,000 Hz)

88.5

86

[dB]

Power handling, short term, IEC 268-5, no additional filtering

 

 

[W]

Power handling, long term, IEC 268-5, no additional filtering

 

 

[W]

Power handling, continuous, IEC 268-5, no additional filtering

50

50

[W]

Effective radiating area, Sd

54

54

[sq.cm]

Resonance frequency (free air, no baffle), Fs

70

61.5

71.5

63

[Hz]

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

6.55

6.25

[g]

Force factor, Bxl

4.5

5.5

[N/A]

Suspension compliance, Cms

0.79

1.03

0.79

1.03

[mm/N]

Equivalent air volume, Vas

3.25

4.25

3.25

4.25

[lit.]

Mechanical resistance, Rms

0.49

0.42

0.49

0.42

[Ns/m]

Mechanical Q, Qms

5.9

6.0

5.7

5.9

[-]

Electrical Q, Qes

0.46

0.40

0.56

0.49

[-]

Total Q, Qts

0.42

0.37

0.51

0.45

[-]

Voice coil resistance, RDC

3.2

6.0

[ohm]

Voice coil inductance, Le (measured at 10 kHz)

0.086

0.14

[mH]

Voice coil inside diameter

26

26

[mm]

Voice coil winding height

12

12

[mm]

Air gap height

4

4

[mm]

Magnet weight

430

430

[g]

Total unit net weight excl. packaging

1.04

1.04

[kg]

Krm

27

33

[mohm]

Erm

0.43

0.44

[-]

Kxm

198

430

[mH]

Exm

0.17

0.14

[-]

Product Datasheet: Wavecor WF120BD03 - Please Click Here.

Product Drawing click here

 

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