1 inch (25 mm) Premium Silk Dome Tweeter with Rear Chamber

Brand Name
Oaktron by MISCO
Model #
Part #
In stock

This Oaktron one-inch Silk Dome tweeter is an ideal choice for two-way systems. It features a wave guide design for a smoother frequency response, and a large rear chamber for crossovers with 6.5" or 8" woofers. A powerful neodymium magnet allows for high electrical damping and sensitivity. The faceplate features recessed mounting holes, reducing reflections from mounting screws.

  • Tweeter
  • 1 in. (25 mm) basket diameter
  • 20 watts, 4 ohms, 87 dB SPL
  • 1 in. aluminum voice coil, aluminum former
  • Neodymium magnet, ABS plastic mounting plate & rear chamber
  • Silk dome, silk surround

MISCO engineers test and analyze the performance of these speakers using the world's most sophisticated loudspeaker measurement systems including the Klippel Analyzer and the Klippel QC, which confirm final design.  Oaktron by MISCO is the premium line of high performance, ready-to-ship transducers for a wide variety of applications including high fidelity, musical instrument, automotive and many more. From elegantly simple to highly specialized designs for unique and demanding applications, there is an Oaktron loudspeaker perfectly suited for your needs.

Note: Protect the tweeters installed in your audio system. Lower frequencies are not desirable signals to send to a tweeter. They can damage or destroy the tweeter diaphragm. Protection is important. Use a simple passive crossover (First Order), by using a (proper value) capacitor to stop low frequencies from making it to the tweeter. You can also further refine your audio system by adding more complex crossovers with inductors and more capacitors and resistors. Or, ultimately you may want to add an active crossover system.

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More Information
Brand Name Oaktron by MISCO
Model # 25-TD04-01
Size, Nominal (inch & mm) 1" (25 mm)
Shape of Speaker Round
Speaker Type Tweeter
Application High-End Audio and Home Theater, Home Audio, Pro Sound
Environment Indoor
RoHS Compliant Yes
Nominal Impedance (Z) (Ω) 4
Rated Power IEC268-5 (W) 20 Watts
Rated Impedance (Ω) 4
Continuous Power (W) 20
Program Power (W) 40
Frequency Range (Hz) 430 - 20,000
Sensitivity (dB SPL) ¹ 87
Resonant Frequency (Fs) (Hz) +/- 15% 699
DC Resistance (Re) (Ω) 3.6
Voice Coil Inductance (Le) (mH) 0.03
Mechanical Q Factor (Qms) 2.05
Electrical Q Factor (Qes) 1.38
Total Q Factor (Qts) 0.83
Mechanical Resistance (Rms) (kg/s) 0.75
Compliance Equivalent Volume (Vas) (L) 0.01
Suspension Compliance (Cms) (mm/N) 0.15
Surface Area of Diaphragm (Sd) (cm²) 7.1
Moving Mass (Mms) (gm) 0.4
Motor Force Factor (BL) (T•M) 2.0
Efficiency (η₀) (%) 0.25
Efficiency Bandwidth Product (EBP) (Fs/Qes) 504.8
Basket Type ABS plastic mounting plate and rear chamber
Terminal Size (mm) 4.7 x 0.5 mm
Voice Coil Diameter (mm) 25.4
Voice Coil Wire Material Copper clad aluminum
Voice Coil Former Material Aluminum
Voice Coil Winding Single coil, two layer
Magnet Material Neodymium
Cone Body Material Single piece, treated silk dome - black
Cone Surround Material Single piece, treated silk dome - black
Net Weight (kg) 0.09
Technical Notes

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