90mm x 27mm Paper Cone Fullrange


90mm x 27mm, Steel Frame
0.5" CCAW Voice Coil, Aluminum Former
Paper Cone, Rubber Surround
Dual Neodymium Magnet Motor System
Rectangular narrow loudspeaker
Power Handling with 2th HP Filter @ 120Hz
2.25 Inch
240 Hz
8 Ohms
82 dB
Quality Factor
1.05 Qts
Rated Power
20 W
  • Description
  • Measure Chart
  • Specification
  • Mechanical Drawing

This is  90mm x 27mm 8 ohm driver, and it is a Fullrange feature with a 0.5 inch voice coil with CCAW. In the suspension system, the cone consists of a paper cone with a ring of nitrile rubber.In a permanent magnet motor system, the magnet is composed of two magnetic circuits.You can use it on the Soundbar model.


T-S Parameters
Resonance frequency [fs] 238 Hz
Mechanical Q factor [Qms] 3.46
Electrical Q factor [Qes] 1.51
Total Q factor [Qts]  1.05
Force factor [Bl] 3.12 Tm
Mechanical resistance [Rms] 0.55 kg/s
Moving mass [Mms]  1.28 g
Compliance [Cms] 0.34 mm/N
Effective diaph. diameter [D]  75.2 x 20 mm
Effective piston area [Sd] 14.18 cm²
Equivalent volume [Vas] 0.09 l
Sensitivity (2.83V/1m)  82 dB
Ratio Bl/√Re 1.13 N/√W
Ratio fs/Qts 226.6 Hz
Electrical Data
Nominal impedance [Zn]  8 Ω
Minimum impedance [Zmin]  6.8 Ω
Maximum impedance [Zo] 20.7 Ω
DC resistance [Re] 7.6 Ω
Voice coil inductance [Le]  0.19 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 13.28 mm
Voice coil height 4.4 mm
Voice coil layers 4
Height of gap 2 mm
Linear excursion ± 1.2 mm
Max mech. excursion ± - mm
Unit weight 0.0392 kg



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