Ruth's sister
Ruth's sister 270B 44-core titanium diaphragm voice coil 8 Ω 30 W
Titanium diaphragm voice coil rated at 8 Ω and 30 W RMS for professional tweeter speakers
- Titanium diaphragm delivers crisp highs with 44-core voice coil
- 8 Ω impedance matches many tweeter designs for easy integration
- 30 W RMS power handling supports loud, clean treble reproduction
- Compact 6.5 cm outer diameter fits tight horn throats
- 5 cm inner diameter suits standard 1.38 in throat openings
Diaphragm coil for tweeter repair
This 270B voice coil uses a 44-core titanium diaphragm rated at 8 Ω and 30 W RMS. It suits DIY builders replacing a damaged high-frequency driver in horn-loaded speaker cabinets. The single-piece assembly includes the coil ring and film without additional mounting hardware.
Titanium film limits and fit
The diaphragm pattern varies between units and cannot be matched to product images. Manual measurement tolerances of up to 1 cm mean the 8.2 cm cylindrical and 8.4 cm back diagonal lines are approximate. Builders requiring exact visual consistency or tighter dimensional control should verify suitability before ordering.
Power handling and coverage
At 30 W RMS the coil handles typical tweeter duties in home or small PA systems. The 6.5 cm outer and 3.5 cm inner diameters fit many standard horn throats, but larger-format compression drivers or higher-power arrays will exceed its thermal and mechanical headroom.
Highlights
- Titanium diaphragm delivers crisp highs with 44-core voice coil
- 8 Ω impedance matches many tweeter designs for easy integration
- 30 W RMS power handling supports loud, clean treble reproduction
- Compact 6.5 cm outer diameter fits tight horn throats
- 5 cm inner diameter suits standard 1.38 in throat openings
Specifications
No published specifications for this item yet.
Questions about this item
How do I know the 270B voice coil is the right version for my horn driver?
Match the 34.4 mm and 34.5 mm core sizes, the 6.5 cm outer diameter, the 3.5 cm inner diameter, the 8.2 cm cylindrical diagonal and the 8.4 cm back diagonal to your existing diaphragm.
What does the 30 W RMS rating mean when the coil is mounted in my tweeter?
The coil can handle 30 W of continuous pink-noise power without thermal failure, provided the horn and crossover are correctly aligned.
What does the 8 Ω impedance actually present to my amplifier?
The coil presents an 8 Ω nominal load; the amplifier will see a rising impedance above resonance and a DC resistance slightly below 8 Ω.
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