ASDFD2000-0400
ASDFD2000-0400
Standard
1.75" x 4" Paper Cone Fullrange

ASDFD2000-0400

Feature
1.75" x 4", Racetrack Steel Frame
0.7" PESVW Voice Coil , Kapton Former
Paper Cone, Cloth Surround
Ferrite Magnet Motor System
Low Distortion (<3%)
Power Handling with 2th HP Filter @140Hz
Size
2.5 Inch
Fs
180 Hz
Re
4 Ohms
Sensitivity
84 dB
Quality Factor
1.2 Qts
Rated Power
20 W
  • Description
  • Measure Chart
  • Specification
  • Mechanical Drawing
SPEC SHEET

This is a 1.75 × 4 inch 4 ohm driver, it is a Fullrange features 0.7 inch voice coil with PESVW. In term of suspension system, cone is consisted by Paper Cone body with Cloth surround and spider is consisted by Conex. In term of magnet motor system, magnet is consisted by Ferrite material. It can be used on Soundbar model.

Family
Range

T-S Parameters
Resonance frequency [fs] 180 Hz
Mechanical Q factor [Qms] 3.5
Electrical Q factor [Qes] 1.8
Total Q factor [Qts]  1.2
Force factor [Bl] 2.2 Tm
Mechanical resistance [Rms] 0.7 kg/s
Moving mass [Mms]  2.4 g
Compliance [Cms] 0.3 mm/N
Effective diaph. diameter [D]  33x85.7 mm
Effective piston area [Sd] 26.7 cm²
Equivalent volume [Vas] 1.0 l
Sensitivity (2.83V/1m)  84 dB
Ratio Bl/√Re 1.19 N/√W
Ratio fs/Qts 150 Hz
Electrical Data
Nominal impedance [Zn]  4 Ω
Minimum impedance [Zmin]  4 Ω
Maximum impedance [Zo] 9.691 Ω
DC resistance [Re] 3.4 Ω
Voice coil inductance [Le]  0.04 mH
Power Handling
100h RMS noise test (IEC 18.4) 20 W
Long-term max power (IEC 18.2) -  W
Voice Coil & Magnet Data
Voice coil diameter 18.4 mm
Voice coil height 6.5 mm
Voice coil layers 2
Height of gap 3 mm
Linear excursion ± 1.75 mm
Max mech. excursion ± - mm
Unit weight 0.26 kg

 

ASDFD2000-0400

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