 |
 |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
- Graphene reinforced textile dome with increased high-frequency extension, consistency, and temperature rating
- 30 mm design with controlled off-axis and power response, high power handling, and low resonance frequency
- Innovative design of Internal volumes for low resonance frequency and distortion
- Optimized dome shape for improved high frequency cutoff
- Vented voice coil former reducing 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
|
|
|
|
TW030WA21 on-axis SPL response
|
|
TW030WA21 impedance response
|
|
|
TW030WA22 on-axis SPL response
|
|
TW030WA22 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
|
TW030WA21
|
TW030WA22
|
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.
|
800
|
800
|
[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.
|
65
|
65
|
[W]
|
|
|
Effective radiating area, Sd
|
11.5
|
11.5
|
[sq.cm]
|
|
3, 4, 6
|
Resonance frequency (free air, no baffle), Fs
|
750
|
780
|
[Hz]
|
|
|
Moving mass, incl. air (free air, no baffle), Mms
|
0.45
|
0.42
|
[g]
|
|
3
|
Force factor, Bxl
|
2.05
|
2.6
|
[N/A]
|
|
3, 4, 6
|
Suspension compliance, Cms
|
0.10
|
0.10
|
[mm/N]
|
|
3, 4, 6
|
Equivalent air volume, Vas
|
0.019
|
0.019
|
[lit.]
|
|
3, 4, 6
|
Mechanical resistance, Rms
|
0.26
|
0.27
|
[Ns/m]
|
|
3, 4, 6
|
Mechanical Q, Qms
|
8.2
|
7.6
|
[-]
|
|
3, 4, 6
|
Electrical Q, Qes
|
1.78
|
2.05
|
[-]
|
|
3, 4, 6
|
Total Q, Qts
|
1.46
|
1.62
|
[-]
|
|
4
|
Voice coil resistance, RDC
|
3.6
|
6.6
|
[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
|
172
|
172
|
[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
|
|
|
|
HARMONIC DISTORTION
|
|
|
|
OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)
|
|
|
|
|
|
|
Part no. TW030WA21-01
|
4 ohm version, individual packaging (one piece per box)
|
|
Part no. TW030WA21-02
|
4 ohm version, bulk packaging
|
|
Part no. TW030WA22-01
|
8 ohm version, individual packaging (one piece per box)
|
|
Part no. TW030WA22-02
|
8 ohm version, bulk packaging
|
|
|
|
|
Latest update:October 4, 2023
|
|
|
|
|
|
|
|
Specifications are subject to change without any further notice.
Copyright © 2006-2023 by Wavecor Ltd., China. All rights reserved.
|
|
|
