 |
 |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Downloads
SPL and impedance response curves as text files
|
|
|
|
TW022WA07/09 on-axis SPL response
|
|
TW022WA07/09 impedance response
|
|
|
TW022WA08/10 on-axis SPL response
|
|
TW022WA08/10 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
|
TW022WA07
TW022WA09
|
TW022WA08
TW022WA10
|
Unit
|
|
|
Nominal size
|
22
|
22
|
[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)
|
92
|
89.5
|
[dB]
|
|
2
|
Power handling, short term, IEC 268-5, 2.5 kHz@12dB/oct.
|
700
|
700
|
[W]
|
|
2
|
Power handling, long term, IEC 268-5, 2.5 kHz@12dB/oct.
|
70
|
70
|
[W]
|
|
2
|
Power handling, continuous, IEC 268-5, 2.5 kHz@12dB/oct.
|
20
|
20
|
[W]
|
|
|
Effective radiating area, Sd
|
6.1
|
6.1
|
[sq.cm]
|
|
3, 4, 6
|
Resonance frequency (free air, no baffle), Fs
|
700
|
730
|
[Hz]
|
|
|
Moving mass, incl. air (free air, no baffle), Mms
|
0.27
|
0.25
|
[g]
|
|
3
|
Force factor, Bxl
|
1.76
|
2.24
|
[N/A]
|
|
3, 4, 6
|
Suspension compliance, Cms
|
0.19
|
0.19
|
[mm/N]
|
|
3, 4, 6
|
Equivalent air volume, Vas
|
10
|
10
|
[mlit.]
|
|
3, 4, 6
|
Mechanical resistance, Rms
|
0.93
|
0.93
|
[Ns/m]
|
|
3, 4, 6
|
Mechanical Q, Qms
|
1.3
|
1.2
|
[-]
|
|
3, 4, 6
|
Electrical Q, Qes
|
1.2
|
1.4
|
[-]
|
|
3, 4, 6
|
Total Q, Qts
|
0.62
|
0.66
|
[-]
|
|
4
|
Voice coil resistance, RDC
|
3.1
|
6.0
|
[ohm]
|
|
5
|
Voice coil inductance, Le (measured at 20 kHz)
|
22
|
37
|
[μH]
|
|
|
Voice coil inside diameter
|
22
|
22
|
[mm]
|
|
|
Voice coil winding height
|
1.8
|
1.8
|
[mm]
|
|
|
Air gap height
|
2.5
|
2.5
|
[mm]
|
|
|
Theoretical linear motor stroke, Xmax
|
+/-0.35
|
+/-0.35
|
[mm]
|
|
|
Magnet weight
|
18.5
|
18.5
|
[g]
|
|
|
Total unit net weight excl. packaging
|
77/94
|
77/94
|
[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
|
|
|
|
|
HARMONIC DISTORTION
|
|
|
|
OUTLINE DRAWING AND NOMINAL DIMENSIONS
|
|
|
|
|
|
PACKAGING AND ORDERING INFORMATION
|
|
|
|
|
Part no. TW022WA07-01
|
4 ohm version, without face plate, individual packaging (one pair per box)
|
|
Part no. TW022WA07-02
|
4 ohm version, without face plate, bulk (industrial) packaging
|
|
Part no. TW022WA08-01
|
8 ohm version, without face plate, individual packaging (one pair per box)
|
|
Part no. TW022WA08-02
|
8 ohm version, without face plate, bulk (industrial) packaging
|
|
Part no. TW022WA09-01
|
4 ohm version, with face plate, individual packaging (one pair per box)
|
|
Part no. TW022WA09-02
|
4 ohm version, with face plate, bulk (industrial) packaging
|
|
Part no. TW022WA10-01
|
8 ohm version, with face plate, individual packaging (one pair per box)
|
|
Part no. TW022WA10-02
|
8 ohm version, with face plate, bulk (industrial) packaging
|
|
|
|
|
Latest update: October 10, 2020
|
|
|
|
|
|
|
|
Specifications are subject to change without any further notice.
Copyright © 2006-2022 by Wavecor Ltd., China. All rights reserved.
|
|
|
|
|
|
MORE INFO
|
|
|
|
|
|
