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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
Distortion
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

Downloads
SPL and impedance response curves as text files

TW030WA09 SPL response

TW030WA09 on-axis SPL response

TW030WA09 imp response

TW030WA09 impedance response

TW030WA10 SPL response

TW030WA10 on-axis SPL response

TW030WA10 imp response

TW030WA10 impedance response

Important!
Please observe that these text files for download are actual measurements of the drivers measured in infinite baffle and without any enclosure. Measuring the drivers in a finite baffle (like the baffle of most speaker cabinets) and in any size of enclosure will lead to different response curves.

NOMINAL SPECIFICATIONS

Notes

  Parameter

TW030WA09

TW030WA10

Unit

 

Nominal size

30

30

[mm]

 

Nominal impedance

4

8

[ohm]

 

Recommended frequency range

2 - 25

2 - 25

[kHz]

1, 4

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

93

91

[dB]

2

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

750

750

[W]

2

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

200

200

[W]

2

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

60

60

[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)

38

73

[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

170

170

[g]

 

Total unit net weight excl. packaging

400

400

[g]

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

FREQUENCY RESPONSE

TW030WA09-SPL-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

TW030WA09-impedance
TW030WA10-SPL-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

TW030WA10-impedance

HARMONIC DISTORTION

TW030WA09-harmonic-distortion

Measuring conditions, harmonic distortion
Driver mounting: In infinite baffle
Microphone distance: 0.5 m
Input signal: Stepped sine wave, 2.0 VRMS (TW030WA09) / 2.83 VRMS (TW030WA10)
Smoothing: 1/6 oct.

TW030WA10-harmonic-distortion

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

TW030WA09_10 outline drawing
TW030WA09/10 outline drawing

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:Jun. 24, 2022

 

Specifications are subject to change without any further notice.
Copyright © 2006-2022 by Wavecor Ltd., China. All rights reserved.

 

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MORE INFO

TW030WA09_10 specificationsPDF data sheet

 

 

 

 

 

 

 

 

 

 

 

 

 

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