Standard
3" Paper Cone Midrange
FSIMD1500-0801
Features
3", Steel Frame
0.8" CCAW Voice Coil, Kapton Former
Paper Pulp Cone, Cloth Surround
Dual Ferrite Magnet Motor System
Neodymium Cancelling Magnet on Pole
Parameters
Size
3 Inch
Fs
115 Hz
Re
4 Ohms
Sensitivity
84 dB
Quality Factor
0.77 Qts
Rated Power
15 W
This 2.5 inch 8 ohm Midrange driver, with 0.8 inch voice coil copper clad Aluminum wire, Aluminum former, paper cone and cloth surround. It contains dual Neodymium magnet system which provides maximum flux in a compact package.The Aluminum former and busket under spider are vented hole so as to reduce air compression effects and aid cooling of the motor under high excursion conditions.
Family
Range
Frequency Response & Impedance Curve
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 115.8 Hz |
| Mechanical Q factor [Qms] | 3.757 |
| Electrical Q factor [Qes] | 0.789 |
| Total Q factor [Qts] | 0.652 |
| Force factor [Bl] | 4.744 Tm |
| Mechanical resistance [Rms] | 0.683 kg/s |
| Moving mass [Mms] | 3.527 g |
| Compliance [Cms] | 0.535 mm/N |
| Effective diaph. diameter [D] | 60 mm |
| Effective piston area [Sd] | 28.27 cm² |
| Equivalent volume [Vas] | 0.6058 l |
| Sensitivity (2.83V/1m) | 88 dB |
| Ratio Bl/√Re | 1.76 N/√W |
| Ratio fs/Qts | 177.6 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 8 Ω |
| Minimum impedance [Zmin] | 6.992 Ω |
| Maximum impedance [Zo] | 40.706 Ω |
| DC resistance [Re] | 6.92 Ω |
| Voice coil inductance [Le] | 0.099 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 15 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 20.3 mm |
| Voice coil height | 7.0 mm |
| Voice coil layers | 2 |
| Height of gap | 3.0 mm |
| Linear excursion | ± 2.0 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.447 kg |
