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TD25F-4 1" Soft Dome Tweeter 4 Ohm

Quick Overview

Dayton Audio’s TD25F-4 1” soft dome tweeter is ideal for adding natural high frequency response to cost effective projects. Capable of handling a crossover frequency as low as 2,000 Hz (@ 12 dB/octave), the TD25F-4 makes a great choice for use in compact 2-way designs.

Product Highlights

  • 1” silk dome delivers high efficiency and smooth response
  • Semi-horn loaded faceplate protects the dome while controlling off-axis response
  • Low Fs for use with crossovers as low as 2,000 Hz (@12 dB/octave)
  • Perfect choice for use in budget 2-way designs

Product Manuals / Spec Sheets / Downloads

Dayton Audio TD25F-4 Specification Sheet
Dayton Audio TD25F-4 Data Files

With a 1” silk dome the TD25F-4 from Dayton Audio produces smooth and natural high frequency output. The semi-horn loaded faceplate helps to control the off-axis response while recessing the dome for extra protection. An Fs of 900 Hz makes this tweeter suitable for use with a crossover as low as 2,000 Hz for an easy transition to most 6-1/2” woofers. The TD25F-4 is an excellent choice for use in cost effective, but high performance, 2-way speaker systems.

Speaker Series
Model Number TD25F-4
List Price $24.99
Color Black
Unit of Measure Each
UPC 848791007903
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 1.15
Speaker Type Tweeter
Nominal Diameter 1"
Power Handling (RMS) 20 watts
Power Handling (max) 40 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 91 dB @ 2.83V/1m
Frequency Response

2,000 - 20,000 Hz

Voice Coil Diameter 25 mm
Magnet Weight --
DC Resistance (Re) 3.5 ohms
Voice Coil Inductance (Le) 0.04 mH @ 1 kHz
Resonant Frequency (Fs) 900 Hz
Mechanical Q (Qms) 2.22
Electromagnetic Q (Qes) 1.62
Total Q (Qts) 0.94
Diaphragm Mass Inc. Airload (Mms) --g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) --mm/N
Surface Area Of Cone (Sd) 7.5 cm²
Volume of Displacement (Vd) --cm³
BL Product (BL) --
Compliance Equivalent Volume (Vas) --
Maximum Linear Excursion (Xmax) --
Drivers Mechanical Losses (Rms) --
Cone / Diaphragm Material --
Entry / Exit Diameter --
Surround Material --
Voice Coil Wire Material --
Voice Coil Former --
Basket/Frame Material --
Magnet Material Ferrite
Overall Outside Diameter 3.68"
Overall Depth 1.28"
Baffle Cutout Diameter 2.72"
# Mounting Holes 3
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --