Standard Transducers
8" Paper Cone Subwoofer


8", Steel Frame
1.4" 1-EISVW Voice Coil, Aluminum Former
Paper Cone, Rubber Surround
Ferrite Magnet Motor System
High Sensitivity
8.0 Inch
44.0 Hz
3 Ohms
89.00 dB
Quality Factor
0.520 Qts
Rated Power
250 W
  • Description
  • Measure Chart
  • Specification
  • Mechanical Drawing

This is a 8 inch 3ohm transducer, it is a Woofer features 1.4 inch voice coil with 1-EISVW In term of suspension system, cone is consisted by Paper Cone body with NBR surround and spider is consisted by NC. In term of magnetic motor system, magnet is consisted by Ferrite material. It can be used on  woofer model.


T-S Parameters
Resonance frequency [fs] 44 Hz
Mechanical Q factor [Qms] 2.94
Electrical Q factor [Qes] 0.64
Total Q factor [Qts]  0.52
Force factor [Bl] 7.92 Tm
Mechanical resistance [Rms] 4.91 kg/s
Moving mass [Mms]  52.2 g
Compliance [Cms] 0.25 mm/N
Effective diaph. diameter [D]  160 mm
Effective piston area [Sd] 201.06 cm²
Equivalent volume [Vas] 14.28 l
Sensitivity (2.83V/1m)  89 dB
Ratio Bl/√Re 4.74 N/√W
Ratio fs/Qts 84.61 Hz
Electrical Data
Nominal impedance [Zn]  3 Ω
Minimum impedance [Zmin]  3.1 Ω
Maximum impedance [Zo] 39.2 Ω
DC resistance [Re] 2.78 Ω
Voice coil inductance [Le]  0.94 mH
Power Handling
100h RMS noise test (IEC 17.1) 250 W
Long-term max power (IEC 17.3) - W
Voice Coil & Magnet Data
Voice coil diameter 35.5 mm
Voice coil height 25.3 mm
Voice coil layers 4
Height of gap 8 mm
Linear excursion ± 8.65 mm
Max mech. excursion ± - mm
Unit weight 2.74 kg



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