65A20EHC20207
65A20EHC20207
Standard
2.5" Paper Cone Fullrange

65A20EHC20207

Feature
2.5", Steel Frame
0.8" EISVW Voice Coil, Kapton Former
Paper Cone, Rubber Surround
Dual Neodymium Magnet Motor System
High Sensitivity
Size
2.5 Inch
Fs
145 Hz
Re
4 Ohms
Sensitivity
86 dB
Quality Factor
0.68 Qts
Rated Power
3 W
  • Description
  • Measure Chart
  • Specification
  • Mechanical Drawing
SPEC SHEET

The ultimate 2.5 inch, 4 ohm Steel frame driver have been newly designed with 0.8 inch EISVW voice coil, Upgraded PULP Diaphragm and Neodymium 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
65A20EHC20207

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