TW030WA11 and TW030WA12 are tweeters designed for the most demanding applications, where low resonance frequency, high sensitivity and power handling, controlled dispersion, and a very wide frequency range are required.
- Featuring waveguide face plate for controlled dispersion, offering optimized off-axis and power response
- 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
- 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
Notes
Parameter
TW030WA11
TW030WA12
Unit
Nominal size
30
30
[mm]
Nominal impedance
4
8
[ohm]
Recommended frequency range
1.5 - 25
1.5 - 25
[kHz]
1, 4
Sensitivity, 2.83V/1m (average SPL in range 2 - 20 kHz)
93.5
91
[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.
45
45
[W]
Effective radiating area, Sd
11.5
11.5
[sq.cm]
3, 4, 6
Resonance frequency (free air, no baffle), Fs
410
425
[Hz]
Moving mass, incl. air (free air, no baffle), Mms
0.43
0.40
[g]
3
Force factor, Bxl
1.7
2.0
[N/A]
3, 4, 6
Suspension compliance, Cms
0.35
0.35
[mm/N]
3, 4, 6
Equivalent air volume, Vas
66
66
[mlit.]
3, 4, 6
Mechanical resistance, Rms
0.57
0.57
[Ns/m]
3, 4, 6
Mechanical Q, Qms
1.9
1.9
[-]
3, 4, 6
Electrical Q, Qes
1.34
1.74
[-]
3, 4, 6
Total Q, Qts
0.79
0.90
[-]
4
Voice coil resistance, RDC
3.5
6.5
[ohm]
5
Voice coil inductance, Le(measured at 20 kHz)
23
35
[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
0.70
0.70
[kg]
3, 4, 5
Krm
2.9
2.8
[mohm]
3, 4, 5
Erm
0.50
0.53
[-]
3, 4, 5
Kxm
58
424
[mH]
3, 4, 5
Exm
0.20
0.036
[-]
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