Dayton Audio RST28F-4

€54.32 *

Prices incl. VAT plus shipping costs

Delivery time 10 Workdays

  • rst28f-4
RST28F-4 1-1/8" Silk Dome Tweeter 4 Ohm   The Dayton Audio RST28F-4 silk dome Reference... more
Product information "Dayton Audio RST28F-4"

RST28F-4 1-1/8" Silk Dome Tweeter 4 Ohm


The Dayton Audio RST28F-4 silk dome Reference Series tweeter offers exceptional efficiency from 1,400 Hz to 20,000 Hz with an extremely natural and dynamic sound. This unique 1-1/8" silk dome and a state-of-the-art Ferrofluid cooled motor system employs copper shorting rings to ensure that high frequency content is reproduced as transparently as possible, assuring studio-quality performance. RST28F-4 tweeters not only match the look and features of the RS woofers and midranges but also the clean, detailed, and uncolored sound that characterizes the entire series. These are just a few of the features that allow these tweeters to outperform some the most expensive audiophile high-frequency transducers.

Product Highlights

1-1/8" silk diaphragm offers remarkable clarity
• Exceptional efficiency at 93.5 ±3dB from 1.4 kHz to 20 kHz and a smooth frequency response
• Well-designed phase bridge to balance the response in the upper octave
• Tuned rear chamber and high-quality Ferrofluid for excellent low-end response
• Low-distortion motor system achieves a rare level of transparency
• Matches the performance of even the most expensive audiophile high-frequency transducers



  • power handling (continuous/programme) = 80 W
  • frequency range = 1400-20000 Hz
  • resonance frequency fs = 710 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 93,5 dB (2,83V; 1m)
  • DC resistance Re = 3,0 Ohm
  • voice coil inductance L = 0,03 mH
  • effective piston radiating area Sd = 6,6 cm2
  • total Q factor Qts = 0,92 (Qms=2,52, Qes=1,46)
  • voice coil diameter = 29 mm
  • mounting diameter d = 72,0 mm
  • overall diameter d = 104,5 mm
  • mounting depth (not countersunk) t = 42 mm
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