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Description
This 4 inch Aluminum Alloy Tweeter, 4 ohm, with Front-Mounting panel. It has good process ability and high yield for mass production. Because of this special raw material structure and unique processing technology, from magnesium lithium metal foil, the attributes of Magnesium Lithium offer high strength, good rigidity, good heat resistance, low density and so on.
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Features
- 4”, Aluminum Alloy Front Panel
- 1” CCAW Voice Coil, Aluminum Former
- Mg-Li Alloy Dome, Soft Surround
- Ferrite Magnet Motor System
Parameters
Size
Fs
Re
Sensitivity
Quality Factor
Rated Power
1 Inch
725 Hz
4 Ohms
90 dB
0.73 Qts
20 W
Description
This 4 inch Aluminum Alloy Tweeter, 4 ohm, with Front-Mounting panel. It has good process ability and high yield for mass production. Because of this special raw material structure and unique processing technology, from magnesium lithium metal foil, the attributes of Magnesium Lithium offer high strength, good rigidity, good heat resistance, low density and so on.
Links
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 725.3 Hz |
| Mechanical Q factor [Qms] | 2.286 |
| Electrical Q factor [Qes] | 1.086 |
| Total Q factor [Qts] | 0.736 |
| Force factor [Bl] | 2.38Tm |
| Mechanical resistance [Rms] | 0.761kg/s |
| Moving mass [Mms] | 0.382g |
| Compliance [Cms] | 0.126mm/N |
| Effective diaph. diameter [D] | 28 mm |
| Effective piston area [Sd] | 6.16 cm² |
| Equivalent volume [Vas] | 0.007 l |
| Sensitivity (2.83V/1m) | 90 dB |
| Ratio Bl/√Re | 1.27 N/√W |
| Ratio fs/Qts | 985.4 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.8 Ω |
| Maximum impedance [Zo] | 14.6 Ω |
| DC resistance [Re] | 3.53 Ω |
| Voice coil inductance [Le] | 0.022 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 20 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.4 mm |
| Voice coil height | 2.1 mm |
| Voice coil layers | 2 |
| Height of gap | 2.5 mm |
| Linear excursion | ± 0.2 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.66kg |
