Standard
1.25” Aluminum Cone Fullrange
ASDFD0315-0400
Features
1.25”, Plastic Frame
0.8” PESVW Voice Coil, Aluminum Former
Aluminum Diaphragm, Foam Surround
Neodymium Magnet Motor System
Parameters
Size
1.25 Inch
Fs
255 Hz
Re
3.6 Ohms
Sensitivity
81 dB
Quality Factor
0.79 Qts
Rated Power
3 W
This is a 1.25 inch 4 ohm driver, it is a compact features 0.8 inch voice coil with PESVW. In term of suspension system, cone is consisted by Aluminum Cone body with foam surround. In term of magnet motor system, magnet is consisted by Neodymium material. It can be used on portable speaker model.
Family
Range
Characteristics
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 255 Hz |
| Mechanical Q factor [Qms] | 2.759 |
| Electrical Q factor [Qes] | 1.103 |
| Total Q factor [Qts] | 0.788 |
| Force factor [Bl] | 2.075 Tm |
| Mechanical resistance [Rms] | 0.467 kg/s |
| Moving mass [Mms] | 0.803 g |
| Compliance [Cms] | 0.483 mm/N |
| Effective diaph. diameter [D] | 27.5 mm |
| Effective piston area [Sd] | 5.94 cm² |
| Equivalent volume [Vas] | 0.024 l |
| Sensitivity (2.83V/1m) | 81 dB |
| Ratio Bl/√Re | 1.1 N/√W |
| Ratio fs/Qts | 323 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.8 Ω |
| Maximum impedance [Zo] | 7.8 Ω |
| DC resistance [Re] | 3.6 Ω |
| Voice coil inductance [Le] | 0.053 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 | 20.32 mm |
| Voice coil height | 3.4 mm |
| Voice coil layers | 2 |
| Height of gap | 1.5 mm |
| Linear excursion | ± 0.95 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.0283 kg |
