8" (203 mm) 8 Ohm, Single Driver Loudspeaker

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From well-constructed melodies to simple riffs and chords, music has the potential to fuse into your most cherished memories and relationships. You deserve a listening experience faithful to the original recording, without unwanted acoustic distortions or mechanical distractions. For this reason, we designed the 93087, a unique full-range loudspeaker created to reproduce music with accuracy for high-end, single transducer systems without cross-over requirements.

To reach true fidelity, MISCO designed the 93087 with a sensitivity of 94 dB SPL, an exotic banana pulp dual cone whizzer and cotton spider for optimized dispersion and damping capacities to create an ideal transient response, and an EBP rating of 98 – making this driver’s strong bass reflex ideal for vented enclosures. With the 93087, you’ll have trustworthy, reliable sound for your next home-audio project.

Oaktron by MISCO is a premium line of high performance, ready-to-ship transducers and drivers for a wide variety of applications. From elegantly simple to highly specialized designs for unique and demanding applications, there is an Oaktron loudspeaker perfectly suited for your needs.

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More Information
Model # 203-FR08-01
Height 3.7500
Width 8.7500
Length 8.7500
Size, Nominal (inch & mm) 8" (203 mm)
Shape of Speaker Round
Speaker Type Wide Range Speaker
Application High-End Audio and Home Theater
Environment In Ground
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 8
Rated Power IEC268-5 (W) 30 Watts
Rated impedance (Ω) 8
Power, Continuous (W) 30
Power, Program (W) 60
Frequency range (Hz) 45 - 15,000
Sensitivity (dB SPL) ¹ 94
Resonant Frequency (Fs) (Hz) 52
DC resistance (Re) (Ω) 6.0
Voice Coil Inductance (Le) (mH) 0.38
Mechanical Q factor (Qms) 3.42
Electrical Q Factor (Qes) 0.53
Total Q factor (Qts) 0.46
Mechanical Resistance (Rms) (kg/s) 1.05
Compliance equivalent volume (Vas) (L) 59.05
Suspension Compliance (Cms) (mm/N) 0.85
Surface area of diaphragm (Sd) (cm²) 221.67
Moving mass (Mms) (gm) 10.87
Magnetic Gap Height (mm) 6.3
Coil winding height (mm) 9.9
Maximum linear excursion (Xmax) (mm) 1.8
Motor Force Factor (BL) (T•M) 6.4
Efficiency (η₀) (%) 1.55
Efficiency Bandwidth Product (EBP) (Fs/Qes) 98.48
Basket type Aluminum
Terminal size 6.4 x 0.8 mm / 4.7 x 0.5 mm
Voice coil diameter (mm) 25.81
Voice coil wire material Copper clad aluminum
Voice coil former material Kapton
Voice Coil Winding 2 layer, round wire
Magnet Material Ferrite
Magnet weight (gm) 567
Cone body material Paper
Cone surround material Treated cloth
Dust cap material Paper
Spider Material Treated cloth
Net weight (kg) 1
Technical Notes

¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance