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TW030WA05/06/07/08     30 mm chambered textile tweeters, 4/8 ohm

These four tweeter models share the same basic design but differ as follows:
TW030WA05: 4 ohm, no ferro fluid
TW030WA06: 4 ohm, with ferro fluid
TW030WA07: 8 ohm, no ferro fluid
TW030WA08: 8 ohm, with ferro fluid
.
Real high-end tweeter design with extremely low resonance frequency and distortion.
Thanks to the extensive internal venting between three internal cavities no air inside is trapped. This feature extends the usable frequency range downwards to an extend very rarely found on tweeters.
Adding the high power handling this tweeter is the natural candidate for high-end 2-way speaker systems.
 

FEATURES

TW030WA05-08_300px
  • Precision-coated textile diaphragm for improved consistency and high-frequency extension
  • Extreme internal venting through pole, voice coil former, and top plate to 3 internal chambers
  • Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
  • Reflection-free rear chamber design with solid reinforcement ribs
  • Large ferrite magnet for improved efficiency and transient response
  • With or without high-stability light ferro fluid
  • Flexible lead wires for higher power handling and larger excursion
  • Black anodized magnet structure for increased power handling and reduced power compression
  • Gold plated terminals to prevent oxidation for long-term reliable connection
  • Delivered with EVA gasket attached for hassle-free mounting and secure cabinet sealing

FREQUENCY RESPONSE

TW030WA05-08-freq.-response

Measuring conditions, SPL
Driver mounting: Flush in infinite baffle
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.

TW030WA05-08-dispersion

Measuring conditions, SPL
Driver mounting: Flush in infinite baffle
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.

IMPEDANCE RESPONSE

TW030WA05-08-imp-response

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

NOMINAL SPECIFICATIONS

 

 Parameter

 

Unit

 Nominal size

30

 [mm]

 Nominal impedance

4

8

 [ohm]

 Recommended freq. range

1.5-25

 [kHz]

 Sensitivity, 2.83V/1m, (average 1-20kHz)

91

91

89

88

 [dB]

 Voice coil diameter

30.4

 [mm]

 Voice coil height

1.7

 [mm]

 Air gap height

2.5

 [mm]

 Voice coil resistance, RDC

3.4

6.3

 [ohm]

 Voice coil inductance

20

28

 [μH]

 Magnet weight

260

 [g]

 Effective radiating area, Sd

11.5

 [sq.cm]

 Power handling, continuous, IEC 268-5,
 2.0kHz@12dB/oct.

50

60

50

60

 [W]

 Resonance freq., Fs

450

450

470

470

 [Hz]

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

0.40

0.42

0.37

0.39

 [g]

 Force factor, Bxl

2.0

2.0

2.4

2.4

 [Tm]

 Mechanical Q, Qm

1.5

1.2

1.6

1.3

  -

 Electrical Q, Qe

0.96

1.01

1.19

1.25

  -

 Total Q, Qt

0.59

0.55

0.68

0.64

  -

 Suspension compliance, Cms

0.31

0.30

0.31

0.30

 [mm/N]

 Equiv. air volume, Vas

0.059

0.056

0.059

0.056

 [lit.]

 Total unit net weight

0.59

 [kg]

            Krm (note 1)

100

152

67

64

 [μohm]

            Erm (note 1)

0.85

0.82

0.91

0.92

  -

            Kxm (note 1)

3.3

2.8

5.1

4.3

 [mH]

            Exm (note 1)

0.56

0.56

0.56

0.56

  -

Note 1.  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.

Specifications are before burn-in

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

TW030WA05-08_outline_drawing_PDF
TW030WA05-to-08_outline_drawing

CONNECTIONS (nominal dimensions, in mm)

TW030WA05-08_terminals

PACKAGING AND ORDERING INFORMATION

 Part no. TW030WA05-01

 4 ohm, no ferro fluid

 Individual packaging (one piece per box)

 Part no. TW030WA05-02

 4 ohm, no ferro fluid

 Bulk packaging

 Part no. TW030WA06-01

 4 ohm, with ferro fluid

 Individual packaging (one piece per box)

 Part no. TW030WA06-02

 4 ohm, with ferro fluid

 Bulk packaging

 Part no. TW030WA07-01

 8 ohm, no ferro fluid

 Individual packaging (one piece per box)

 Part no. TW030WA07-02

 8 ohm, no ferro fluid

 Bulk packaging

 Part no. TW030WA08-01

 8 ohm, with ferro fluid

 Individual packaging (one piece per box)

 Part no. TW030WA08-02

 8 ohm, with ferro fluid

 Bulk packaging

 

Latest update: December 28, 2012
 

 

Specifications are subject to change without any further notice.
Copyright © 2006-2014 by Wavecor Ltd., Guangzhou, China. All rights reserved.

 

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MORE INFO

pdf_iconPDF data sheet
(2.41 MB)

 

 

Exploded view
(770KB PNG)

 

Cross section view
(510KB PNG)

 

EDrawings-icon3D model, eDrawing
(XXXMB .htm file)

 

List of all tweeters

 

All Wavecor drivers

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