2" Ultra-Thin Aluminum Cone Woofer
FSA021020-0300
Features
2", Steel Frame
1" CCAW Voice Coil, Aluminum Former
Aluminum Cone, Dual Rubber Surround
Neodymium Magnet Motor System
Spider-less, Slim Design (Patented)
Pole Piece Vent, Low Distortion (<3%)
Parameters
Size
2 Inch
Fs
180 Hz
Re
2.41 Ohms
Sensitivity
81 dB
Quality Factor
0.57 Qts
Rated Power
10 W
A double suspension(patented) driver, with elimination of the limits from traditional single suspension driver, resulted in more diverse and slim design. This 2 inch 3 ohm compact driver features dual rubber surround and black anodized Aluminum cone. The voice coil former and pole piece are vented hole so as to reduce air compression under high excursion conditions.
Family
Range
Characteristics
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 180 Hz |
| Mechanical Q factor [Qms] | 2.553 |
| Electrical Q factor [Qes] | 0.733 |
| Total Q factor [Qts] | 0.570 |
| Force factor [Bl] | 3.531 Tm |
| Mechanical resistance [Rms] | 1.483 kg/s |
| Moving mass [Mms] | 3.813 g |
| Compliance [Cms] | 0.266 mm/N |
| Effective diaph. diameter [D] | 45 mm |
| Effective piston area [Sd] | 15.9 cm² |
| Equivalent volume [Vas] | 0.0952 l |
| Sensitivity (2.83V/1m) | 81 dB |
| Ratio Bl/√Re | 2.27 N/√W |
| Ratio fs/Qts | 277.36 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 3 Ω |
| Minimum impedance [Zmin] | 2.8 Ω |
| Maximum impedance [Zo] | 6.53 Ω |
| DC resistance [Re] | 2.41 Ω |
| Voice coil inductance [Le] | 0.161 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 10 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.4 mm |
| Voice coil height | 7.0 mm |
| Voice coil layers | 4 |
| Height of gap | 2 mm |
| Linear excursion | ± 2.5 mm |
| Max mech. excursion | ± 3.5 mm |
| Unit weight | 0.091 kg |
