4” Ultra-Thin Aluminum Cone Woofer
ASDWL2000-0200
Features
4”, Steel Frame
1” CCAW Voice Coil, Aluminum Former
Aluminum Cone, Rubber Surround
Dual Neodymium Magnet Motor System
Slim Design (Patented)
Pole Piece Vent, Low Distortion(<3%)
Parameters
Size
4 Inch
Fs
85 Hz
Re
2.1 Ohms
Sensitivity
88 dB
Quality Factor
0.58 Qts
Rated Power
8 W
This 4 inch Woofer, The main design features include a steel basket, and a venting dual Neodymium magnet motor system. Ferro-fluid cooled to further lowering the distortion level. The main cone body uses black Anodized Aluminum cone , with one piece Anodized Aluminum dust cap, which is directly couple to voice coil. This product is designed for portable and compact applications.
Family
Range
Characteristics
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 85 Hz |
| Mechanical Q factor [Qms] | 2.997 |
| Electrical Q factor [Qes] | 0.726 |
| Total Q factor [Qts] | 0.584 |
| Force factor [Bl] | 3.715 Tm |
| Mechanical resistance [Rms] | 1.594kg/s |
| Moving mass [Mms] | 8.936 g |
| Compliance [Cms] | 0.391mm/N |
| Effective diaph. diameter [D] | 91 mm |
| Effective piston area [Sd] | 65.04 cm² |
| Equivalent volume [Vas] | 2.344 l |
| Sensitivity (2.83V/1m) | 88 dB |
| Ratio Bl/√Re | 2.56 N/√W |
| Ratio fs/Qts | 145.72 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 2.4 Ω |
| Minimum impedance [Zmin] | 2.4 Ω |
| Maximum impedance [Zo] | 11.54 Ω |
| DC resistance [Re] | 2.1 Ω |
| Voice coil inductance [Le] | 0.183 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 8 W |
| Long-term max power (IEC 18.2) | 10 W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.4 mm |
| Voice coil height | 9.1 mm |
| Voice coil layers | 4 |
| Height of gap | 4 mm |
| Linear excursion | ± 2.55 mm |
| Max mech. excursion | ± 6.0 mm |
| Unit weight | 0.191 kg |
