1TD1-8 Tweeters

1TD1-8 1" Dome Tweeter 8 Ohm

The 1TD1-8 fabric dome tweeter is a very nice replacement tweeter for a vast number of vintage speakers, and an upgrade for many! It has an easy-to-work-with 4" faceplate, and a minimalist appearance that will be welcome in classic speaker models as well as your original designs.

Product Details

Don’t throw away your classic speakers with blown tweeters! The 1TD1-8 is a drop-in replacement for many classic OEM dome tweeters. Preserve the clarity of your classic speakers with these economical units, or add smooth highs to your affordable speaker project with this basic unit. It’s a lot of bang for the buck!


The round faceplate of the 1TD1-8 fits the cutouts for most classic dome tweeters, while its shape reduces diffraction, preserving excellent on-axis response and detail. The 1" voice coil handles plenty of power, and the ferrite magnet assembly provides plenty of force for the lightweight dome, for dynamic reproduction. The 8-ohm impedance makes it compatible with most existing crossovers.


Quick Facts

  • Fabric dome with 1" voice coil
  • Round injection-molded faceplate
  • Economical replacement for dome tweeters
  • Smooth, detailed sound quality


Product Specifications

Tweeter TypeSoft Dome
Cone / Dome Diameter1"
Impedance8 ohms
Power Handling (RMS)50 Watts
Frequency Response2,200 to 20,000 Hz
Sensitivity90 dB 1W/1m

Thiele-Small Parameters

Resonant Frequency (Fs)1,130 Hz
DC Resistance (Re)7.48 ohms
Voice Coil Inductance (Le)0.11 mH
Mechanical Q (Qms)3.29
Electromagnetic Q (Qes)1.84
Total Q (Qts)1.18

Mounting Information

Overall Outside Diameter4.06"
Cutout Diameter2.875"