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TW030WA09/10     30 mm textile tweeter, 4/8 ohm

 

 

 

 

TW030WA09 and TW030WA10 are tweeters designed for applications requiring the highest level of performance, with extended and linear high frequency response and best consistency.

Innovation
Tweeters used to feature a separate rear chamber in order to obtain low resonance frequency. Not any longer. By designing the internal parts to accommodate new larger internal volumes, the TW030WA09/10 offer an unusually low  resonance frequency.

FEATURES

Wavecor-TW030WA09_10-tweeter

Frequency resp.
Specifications
Dimensions
Ordering info

  • 30 mm design with controlled off-axis and power response, high power handling, and low resonance frequency
  • Internal volumes for low resonance frequency and distortion
  • Precision-coated textile diaphragm for improved consistency and high-frequency extension
  • Optimized dome shape for ultra high frequency cutoff
  • Vented voice coil former for reduced distortion and compression
  • Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
  • Build-in cavities under dome/edge to equalize pressure for lower distortion and lower resonance frequency
  • Flexible lead wires for higher power handling and larger excursion
  • Gold plated terminals to prevent oxidation and ensure long-term reliable connection
  • Delivered with foam gasket attached for hassle-free mounting and secure cabinet sealing

FREQUENCY RESPONSE

TW030WA09_SPL_&_IMP_respons

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

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

TW030WA10_SPL_&_IMP_respons

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

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

NOMINAL SPECIFICATIONS

Notes

  Parameter

TW030WA09

TW030WA10

Unit

 

Nominal size

30

30

[mm]

 

Nominal impedance

4

8

[ohm]

 

Recommended frequency range

2 - 27

2 - 27

[kHz]

1, 4

Sensitivity, 2.83V/1m (average SPL in range 2 - 20 kHz)

92.5

90

[dB]

2

Power handling, short term, IEC 268-5, 2.5 kHz@12dB/oct.

 

 

[W]

2

Power handling, long term, IEC 268-5, 2.5 kHz@12dB/oct.

 

 

[W]

2

Power handling, continuous, IEC 268-5, 2.5 kHz@12dB/oct.

 

 

[W]

 

Effective radiating area, Sd

11.5

11.5

[sq.cm]

3, 4, 6

Resonance frequency (free air, no baffle), Fs

725

750

[Hz]

 

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

0.45

0.42

[g]

3

Force factor, Bxl

2.0

2.4

[N/A]

3, 4, 6

Suspension compliance, Cms

0.11

0.11

[mm/N]

3, 4, 6

Equivalent air volume, Vas

0.020

0.020

[lit.]

3, 4, 6

Mechanical resistance, Rms

0.25

0.25

[Ns/m]

3, 4, 6

Mechanical Q, Qms

8.1

7.8

[-]

3, 4, 6

Electrical Q, Qes

1.74

2.17

[-]

3, 4, 6

Total Q, Qts

1.43

1.70

[-]

4

Voice coil resistance, RDC

3.4

6.3

[ohm]

5

Voice coil inductance, Le (measured at 20 kHz)

 

 

[μH]

 

Voice coil inside diameter

30.4

30.4

[mm]

 

Voice coil winding height

1.7

1.7

[mm]

 

Air gap height

2.5

2.5

[mm]

 

Theoretical linear motor stroke, Xmax

0.40

0.40

[mm]

 

Magnet weight

 

 

[g]

 

Total unit net weight excl. packaging

 

 

[kg]

3, 4, 5

Krm

 

 

[mohm]

3, 4, 5

Erm

 

 

[-]

3, 4, 5

Kxm

 

 

[mH]

3, 4, 5

Exm

 

 

[-]

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

Measured before burn in

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

TW030WA09_10 outline drawing
TW030WA09-outline

TERMINAL NOMINAL DIMENSIONS (mm)

Wavecor-TW030WA09_10-terminals

Thickness, both terminals: 0.5 mm
Terminal plating: Gold

PACKAGING AND ORDERING INFORMATION

Part no. TW030WA09-01

4 ohm version, individual packaging (one piece per box)

Part no. TW030WA09-02

4 ohm version, bulk packaging

Part no. TW030WA10-01

8 ohm version, individual packaging (one piece per box)

Part no. TW030WA10-02

8 ohm version, bulk packaging

Latest update:May 12, 2014

 

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

TW030WA09_10 specificationsPDF data sheet
(942 KB)

 

 

 

 

 

 

 

 

All Wavecor drive units

 

Technical pages

 

 

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