Standard
2.5" Paper Cone Fullrange
65A20EHC20207
Features
2.5", Steel Frame
0.8" EISVW Voice Coil, Kapton Former
Paper Cone, Rubber Surround
Dual Neodymium Magnet Motor System
High Sensitivity
Parameters
Size
2.5 Inch
Fs
145 Hz
Re
3.56 Ohms
Sensitivity
86 dB
Quality Factor
0.68 Qts
Rated Power
3 W
The ultimate 2.5 inch, 4 ohm Steel frame driver have been newly designed with 0.8 inch EISVW voice coil, Upgraded Paper cone and Neodymium magnet motor system to provide wide range sound experience. This spectacular driver is the new benchmark for soundbar systems.
Family
Range
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 145.7 Hz |
| Mechanical Q factor [Qms] | 7.741 |
| Electrical Q factor [Qes] | 0.746 |
| Total Q factor [Qts] | 0.68 |
| Force factor [Bl] | 3.235 Tm |
| Mechanical resistance [Rms] | 0.283 kg/s |
| Moving mass [Mms] | 2.392 g |
| Compliance [Cms] | 0.499 mm/N |
| Effective diaph. diameter [D] | 49.4 mm |
| Effective piston area [Sd] | 19.17 cm² |
| Equivalent volume [Vas] | 0.2592 l |
| Sensitivity (2.83V/1m) | 86 dB |
| Ratio Bl/√Re | 1.71 N/√W |
| Ratio fs/Qts | 214.26 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.525 Ω |
| Maximum impedance [Zo] | 25.366 Ω |
| DC resistance [Re] | 3.56 Ω |
| Voice coil inductance [Le] | 0.135 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 3 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 20.4 mm |
| Voice coil height | 5.8 mm |
| Voice coil layers | 2 |
| Height of gap | 4 mm |
| Linear excursion | ± 0.9 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.0873 kg |
