6.5" (165 mm) 8 Ohm, Single Driver Loudspeaker

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At the heart of every personal audio project lives someone craving the meaningful experiences only sound and music can provide. The listener deserves an experience unmarred by mechanical imperfections and acoustic inconsistencies of the speaker. That’s why MISCO designed the 93085: A unique full-range loudspeaker that reproduces music as accurately as possible for high-end, single transducer systems without cross-over requirements.

To achieve faithful reproduction, the 93085 has a sensitivity of 93 dB SPL, a hard fiber dual-cone and cotton spider to optimize dispersion and damping capacities for an ideal transient response, and an EBP of 86 to fit within either a sealed or vented enclosure so you can apply your personal listening preferences to this driver’s strong bass reflex. If you’re looking for true audio fidelity, then this is the speaker for you.

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 # 165-FR08-04
Height 5.0000
Width 7.0000
Length 7.0000
Size, Nominal (inch & mm) 6.5" (165 mm)
Shape of Speaker Round
Speaker Type Wide Range Speaker
Application Home Audio
Environment Indoor
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 - 14k
Sensitivity (dB SPL) ¹ 93
Resonant Frequency (Fs) (Hz) 45
DC resistance (Re) (Ω) 7.32
Voice Coil Inductance (Le) (mH) 0.424
Mechanical Q factor (Qms) 10.52
Electrical Q Factor (Qes) 0.522
Total Q factor (Qts) 0.50
Mechanical Resistance (Rms) (kg/s) 0.22
Compliance equivalent volume (Vas) (L) 48.6935
Suspension Compliance (Cms) (mm/N) 1.538
Surface area of diaphragm (Sd) (cm²) 149.57
Moving mass (Mms) (gm) 8.258
Magnetic Gap Height (mm) 6.25
Coil winding height (mm) 8.64
Maximum linear excursion (Xmax) (mm) 1.195
Motor Force Factor (BL) (T•M) 5.699
Efficiency (η₀) (%) 0.799
Efficiency Bandwidth Product (EBP) (Fs/Qes) 86.20689655
Basket type Aluminum
Terminal size 6.4 mm x 0.8 mm / 4.7 mm 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) 283.5
Cone body material Paper
Cone surround material Treated Cloth
Dust cap material Paper
Spider Material Cotton
Net weight (kg) 2.25
Technical Notes

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