Navigate
Wavecor_logo_250px1
WF146OM01/02     5" paper cone mid/woofer, 4/8 ohm

 

 

 

 

WF146OM01 (4 ohm) and WF146OM02 (8 ohm) are mid/woofers designed for demanding bass and midrange applications. They work equally well for hi-fi, high quality home theater systems, multimedia setups, or high quality personal audio systems.

Frequency resp.
Specifications
Dimensions
Ordering info

FEATURES

WF146OM01_02
  • FEA optimized suspension for perfect symmetry, reducing even order harmonic distortion
  • Balanced Drive motor with perfect force factor symmetry for reduced distortion
  • Vented voice coil former for reduced distortion and compression
  • Vented chassis for lower air flow speed reducing audible distortion
  • Heavy-duty black fiber glass voice coil bobbin to increase power handling and reduce mechanical losses resulting in better dynamic performance and low-level details
  • Progressive suspension with optimized compromise between linearity and soft clipping
  • New damper (spider) woven of a mix of polymers and natural fibers for improved durability
  • Gold plated terminals to prevent oxidation for long-term reliable connection
  • Delivered with foam gasket attached to the frame for hassle-free mounting and secure enclosure sealing

FREQUENCY RESPONSE

WF146OM01-freq-response

Measuring conditions, SPL
Driver mounting: Flush in infinite
     baffle, back side open (no cabinet)
Microphone distance: 1.0 m
Input signal: 2.83 VRMS stepped sine wave
Smoothing: 1/6 oct.

Measuring conditions, impedance
Driver mounting: Free air, no baffle,
     back side open (no cabinet)
Input signal: Stepped sine wave, semi-
     current-drive, nominal current 2 mA
Smoothing: None

WF146OM01-prelim-impedance
WF146OM02-freq-response

Measuring conditions, SPL
Driver mounting: Flush in infinite
     baffle, back side open (no cabinet)
Microphone distance: 1.0 m
Input signal: 2.83 VRMS stepped sine wave
Smoothing: 1/6 oct.

Measuring conditions, impedance
Driver mounting: Free air, no baffle,
     back side open (no cabinet)
Input signal: Stepped sine wave, semi-
     current-drive, nominal current 2 mA
Smoothing: None

WF146OM02-prelim-impedance

NOMINAL SPECIFICATIONS

Notes

  Parameter

WF146OM01

WF146OM02

Unit

Before burn-in

After burn-in

Before burn-in

After burn-in

 

Nominal size

5

5

[inch.]

 

Nominal impedance

4

8

[ohm]

 

Recommended max. upper frequency limit

3.5

3.5

[kHz]

1, 3

Sensitivity, 2.83V/1m (average 300-3,500Hz)

89

86.5

[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

45 (60)

45 (60)

[W]

 

Effective radiating area, Sd

93

93

[sq.cm]

3, 6

Resonance frequency (free air, no baffle), Fs

49

 

50

 

[Hz]

 

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

9.6

9.2

[g]

3

Force factor, Bxl

4.6

5.4

[N/A]

3, 6

Suspension compliance, Cms

1.11

 

1.11

 

[mm/N]

3, 6

Equivalent air volume, Vas

13.6

 

13.6

 

[lit.]

3, 6

Mechanical resistance, Rms

0.41

 

0.41

 

[Ns/m]

3, 6

Mechanical Q, Qms

7.2

 

7.0

 

[-]

3, 6

Electrical Q, Qes

0.45

 

0.55

 

[-]

3, 6

Total Q, Qts

0.42

 

0.51

 

[-]

4

Voice coil resistance, RDC

3.2

5.6

[ohm]

5

Voice coil inductance, Le (measured at 10 kHz)

0.25

0.38

[mH]

 

Voice coil inside diameter

26

26

[mm]

 

Voice coil winding height

10.6

10.6

[mm]

 

Air gap height

4

4

[mm]

 

Theoretical linear motor stroke, Xmax

3.3

3.3

[mm]

 

Magnet weight

 

 

[g]

 

Total unit net weight excl. packaging

 

 

[kg]

3, 5

Krm

0.49

0.58

[mohm]

3, 5

Erm

0.89

0.91

[-]

3, 5

Kxm

10.6

16.0

[mH]

3, 5

Exm

0.63

0.62

[-]

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 20 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.
 

OUTLINE DRAWING AND NOMINAL DIMENSIONS

WF146OM01 and -02 outline drawing
WF146OM01-02_outline_drawing

TERMINAL NOMINAL DIMENSIONS (mm)

Terminals-dimensions

PACKAGING AND ORDERING INFORMATION

Part no. WF146OM01-01

4 ohm version, bulk packaging

Part no. WF146OM02-01

8 ohm version, bulk packaging

Latest update: November 11, 2015

 

Specifications are subject to change without any further notice.
Copyright © 2006-2015 by Wavecor Ltd., Guangzhou, China. All rights reserved.

 

Wavecor Balanced Drive Technology
oem-line-logo-110px
DataBoxTop1

MORE INFO

PDF data sheet
(602 KB)

 

Balanced Drive technical paperBalanced Drive technical paper
(2.34 MB)

 

 

 

 

 

DataBoxShadow1
DataBoxBottom1