Standard
2.5" Paper Cone Midrange
65C20EHC19199D
Features
2.5", Steel Frame
0.8" CCAW Voice Coil, Kapton Former
Paper Cone, Cloth Surround
Dual Neodymium Magnet Motor System
High Sensitivity
Parameters
Size
2.5 Inch
Fs
540 Hz
Re
3.4 Ohms
Sensitivity
88 dB
Quality Factor
2.26 Qts
Rated Power
3 W
This is a 2.5 inch 4 ohm driver, it is a Midrange features 0.8 inch voice coil with CCAW. In term of suspension system, cone is consisted by Paper Cone body with Cloth surround and spider is consisted by NC. In term of magnet motor system, magnet is consisted by Neodymium material. It can be used on Bluetooth speakers model.
Family
Range
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 540 Hz |
| Mechanical Q factor [Qms] | 14.339 |
| Electrical Q factor [Qes] | 2.684 |
| Total Q factor [Qts] | 2.261 |
| Force factor [Bl] | 3.205 Tm |
| Mechanical resistance [Rms] | 0.563 kg/s |
| Moving mass [Mms] | 2.349 g |
| Compliance [Cms] | 0.036 mm/N |
| Effective diaph. diameter [D] | 49 mm |
| Effective piston area [Sd] | 18.86 cm² |
| Equivalent volume [Vas] | 0.018 l |
| Sensitivity (2.83V/1m) | 88 dB |
| Ratio Bl/√Re | 1.738 N/√W |
| Ratio fs/Qts | 238.8 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.68 Ω |
| Maximum impedance [Zo] | 20.51 Ω |
| DC resistance [Re] | 3.4 Ω |
| Voice coil inductance [Le] | 0.072 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 | 4.9 mm |
| Voice coil layers | 2 |
| Height of gap | 4 mm |
| Linear excursion | ± 0.45 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.089 kg |
