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TW030WA13/14    30 mm chambered neodymium textile tweeter, 4/8 ohm

 

 

 

 

 

TW030WA13 and TW030WA14 are true high-end tweeters designed for the most demanding applications featuring an array of performance improving details that participate in obtaining low resonance frequency, low distortion and very high frequency extension

Frequency resp.
Specifications
Dimensions
Ordering info

FEATURES

  • Precision textile dome ensuring extended response and very good consistency
  • 30 mm voice coil design with high power handling, and low resonance frequency
  • Copper clad center pole yielding very low voice coil inductance for reduced distortion and increased high frequency output
  • Vented through to a damped rear chamber for low resonance frequency and low distortion
  • Internal volumes for low resonance frequency and low distortion
  • Optimized dome shape for ultra high frequency cut-off
  • Rear heat sink for increased long term power handling
  • 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
  • Built-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

TW030WA13-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

TW030WA13-imp-response
TW030WA14-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

TW030WA14-imp-response

NOMINAL SPECIFICATIONS

Notes

  Parameter

TW030WA13

TW030WA14

Unit

 

Nominal size

30

30

[mm]

 

Nominal impedance

4

8

[ohm]

 

Recommended frequency range

2 - 30

2 - 30

[kHz]

1, 4

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

93.5

90.5

[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.

35

35

[W]

 

Effective radiating area, Sd

11.5

11.5

[sq.cm]

3, 4, 6

Resonance frequency (free air, no baffle), Fs

690

715

[Hz]

 

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

0.43

0.40

[g]

3

Force factor, Bxl

1.95

2.25

[N/A]

3, 4, 6

Suspension compliance, Cms

0.124

0.124

[mm/N]

3, 4, 6

Equivalent air volume, Vas

23

23

[mlit.]

3, 4, 6

Mechanical resistance, Rms

0.76

0.76

[Ns/m]

3, 4, 6

Mechanical Q, Qms

2.45

2.37

[-]

3, 4, 6

Electrical Q, Qes

1.72

2.31

[-]

3, 4, 6

Total Q, Qts

1.01

1.17

[-]

4

Voice coil resistance, RDC

3.5

6.5

[ohm]

5

Voice coil inductance, Le (measured at 20 kHz)

33

59

[μH]

 

Voice coil inside diameter

30.4

30.4

[mm]

 

Voice coil winding height

1.7

1.7

[mm]

 

Air gap height

3.0

3.0

[mm]

 

Theoretical linear motor stroke, Xmax

0.65

0.65

[mm]

 

Magnet weight

 

 

[g]

 

Total unit net weight excl. packaging

0.13

0.13

[kg]

3, 4, 5

Krm

4.1

4.4

[mohm]

3, 4, 5

Erm

0.48

0.48

[-]

3, 4, 5

Kxm

197

726

[mH]

3, 4, 5

Exm

0.11

0.0

[-]

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

HARMONIC DISTORTION

TW030WA13-Harmonic-Dist

Measuring conditions, harmonic distortion
Driver mounting: In infinite baffle
Microphone distance: 0.5 m
Input signal: Stepped sine wave, 2.0 VRMS (TW030WA13) / 2.83 VRMS (TW030WA14)
Smoothing: 1/6 oct.

TW030WA14-Harmonic-Dist

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

TW030WA09_10 outline drawing
TW030WA13_14-outline-dwg

TERMINAL NOMINAL DIMENSIONS (mm)

Positive terminal

Negative terminal

TW030WA13_14-terminals

Thickness, both terminals: 0.5 mm
Terminal plating: Gold

PACKAGING AND ORDERING INFORMATION

Part no. TW030WA13-01

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

Part no. TW030WA13-02

4 ohm version, bulk packaging

Part no. TW030WA14-01

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

Part no. TW030WA14-02

8 ohm version, bulk packaging

Latest update: September 10, 2017

 

Specifications are subject to change without any further notice.
Copyright © 2006-2017 by Wavecor Ltd., Guangzhou, China. All rights reserved.

 

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MORE INFO

TW030WA09_10 specificationsPDF data sheet
(674 KB )

 

 

 

 

 

 

 

 

All Wavecor drive units

 

 

 

 

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