WF182BD10

7” die cast, paper/glass fiber cone mid/woofer, 8 ohm
Manufacturer: Wavecor
Availability: 2 in stock
SKU: 1381213
Delivery date: 3 weken
£151.07 incl tax
excluding shipping
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Price £146.54 £143.52

The 7” transducers WF182BD09 is designed as high performance bass and midrange unit for monitors and high-end hi-fi speakers. They offer outstanding deep bass performance and dynamic and detailed midrange

FEATURES

  • 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
  • Cone made of a new paper/glass fiber mix with improved consistency and stability
  • Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
  • Vented voice coil former for reduced distortion and compression
  • Vented center pole with dual flares 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
  • Large motor with 1½” voice coil diameter for better control and power handling
  • 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

 

 

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

 

 

WF182BD09_10_outline_DWG

 

 

NOMINAL SPECIFICATIONS

 

Notes

  Parameter

WF182BD09 and WF182BD11

WF182BD10 and WF182BD12

Unit

Before burn-in

After burn-in

Before burn-in

After burn-in

 

Nominal size

7

7

[inch.]

 

Nominal impedance

4

8

[ohm]

 

Recommended max. upper frequency limit

2.5

2.5

[kHz]

1, 4

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

88.5

86

[dB]

2, 4

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

 

 

[W]

2, 4

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

 

 

[W]

2

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

80

80

[W]

 

Effective radiating area, Sd

131

131

[sq.cm]

3, 4, 6

Resonance frequency (free air, no baffle), Fs

33

28.5

34

29.5

[Hz]

 

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

23.4

21.9

[g]

3, 4

Force factor, Bxl

6.5

8.2

[N/A]

3, 4, 6

Suspension compliance, Cms

1.0

1.33

1.0

1.33

[mm/N]

3, 4, 6

Equivalent air volume, Vas

24.3

32.4

24.3

32.4

[lit.]

3, 4, 6

Mechanical resistance, Rms

0.44

0.46

0.44

0.46

[Ns/m]

3, 4, 6

Mechanical Q, Qms

10.9

9.1

10.5

8.8

[-]

3, 4, 6

Electrical Q, Qes

0.37

0.32

0.44

0.38

[-]

3, 4, 6

Total Q, Qts

0.35

0.31

0.42

0.37

[-]

4

Voice coil resistance, RDC

3.2

6.4

[ohm]

5

Voice coil inductance, Le(measured at 10 kHz)

0.10

0.17

[mH]

 

Voice coil inside diameter

39

39

[mm]

 

Voice coil winding height

16

16

[mm]

 

Air gap height

5

5

[mm]

 

Theoretical linear motor stroke, Xmax

±5.5

±5.5

[mm]

 

Magnet weight

725

725

[g]

 

Total unit net weight excl. packaging

1.95

1.95

[kg]

3, 4, 5

Krm

131

117

[mohm]

3, 4, 5

Erm

0.30

0.34

[-]

3, 4, 5

Kxm

17.5

37

[mH]

3, 4, 5

Exm

0.47

0.43

[-]

 
 

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 25 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. This more accurate transducer model is described in a technical paper (PDF) here.

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 10/14.1 VRMS (4/8 ohm version). The unit is not burned in before shipping.

Product Informatie PDF

 

Download PDF data sheet

The 7” transducers WF182BD09 is designed as high performance bass and midrange unit for monitors and high-end hi-fi speakers. They offer outstanding deep bass performance and dynamic and detailed midrange

FEATURES

  • 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
  • Cone made of a new paper/glass fiber mix with improved consistency and stability
  • Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
  • Vented voice coil former for reduced distortion and compression
  • Vented center pole with dual flares 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
  • Large motor with 1½” voice coil diameter for better control and power handling
  • 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

 

 

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

 

 

WF182BD09_10_outline_DWG

 

 

NOMINAL SPECIFICATIONS

 

Notes

  Parameter

WF182BD09 and WF182BD11

WF182BD10 and WF182BD12

Unit

Before burn-in

After burn-in

Before burn-in

After burn-in

 

Nominal size

7

7

[inch.]

 

Nominal impedance

4

8

[ohm]

 

Recommended max. upper frequency limit

2.5

2.5

[kHz]

1, 4

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

88.5

86

[dB]

2, 4

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

 

 

[W]

2, 4

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

 

 

[W]

2

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

80

80

[W]

 

Effective radiating area, Sd

131

131

[sq.cm]

3, 4, 6

Resonance frequency (free air, no baffle), Fs

33

28.5

34

29.5

[Hz]

 

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

23.4

21.9

[g]

3, 4

Force factor, Bxl

6.5

8.2

[N/A]

3, 4, 6

Suspension compliance, Cms

1.0

1.33

1.0

1.33

[mm/N]

3, 4, 6

Equivalent air volume, Vas

24.3

32.4

24.3

32.4

[lit.]

3, 4, 6

Mechanical resistance, Rms

0.44

0.46

0.44

0.46

[Ns/m]

3, 4, 6

Mechanical Q, Qms

10.9

9.1

10.5

8.8

[-]

3, 4, 6

Electrical Q, Qes

0.37

0.32

0.44

0.38

[-]

3, 4, 6

Total Q, Qts

0.35

0.31

0.42

0.37

[-]

4

Voice coil resistance, RDC

3.2

6.4

[ohm]

5

Voice coil inductance, Le(measured at 10 kHz)

0.10

0.17

[mH]

 

Voice coil inside diameter

39

39

[mm]

 

Voice coil winding height

16

16

[mm]

 

Air gap height

5

5

[mm]

 

Theoretical linear motor stroke, Xmax

±5.5

±5.5

[mm]

 

Magnet weight

725

725

[g]

 

Total unit net weight excl. packaging

1.95

1.95

[kg]

3, 4, 5

Krm

131

117

[mohm]

3, 4, 5

Erm

0.30

0.34

[-]

3, 4, 5

Kxm

17.5

37

[mH]

3, 4, 5

Exm

0.47

0.43

[-]

 
 

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 25 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. This more accurate transducer model is described in a technical paper (PDF) here.

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 10/14.1 VRMS (4/8 ohm version). The unit is not burned in before shipping.

Product Informatie PDF

 

Download PDF data sheet

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