Dayton Audio RST28A-4

€46.22 *

Prices incl. VAT plus shipping costs

Delivery time 10 Workdays

  • rst28a-4
RST28A-4 1-1/8" Silk Dome Tweeter 4 Ohm   The Dayton Audio RST28A-4 aluminum dome... more
Product information "Dayton Audio RST28A-4"

RST28A-4 1-1/8" Silk Dome Tweeter 4 Ohm


The Dayton Audio RST28A-4 aluminum dome Reference Series tweeter offers exceptional efficiency from 1,500 Hz to 20,000 Hz with smooth and well controlled frequency response. This tweeter's unique black anodized 1-1/8" aluminum diaphragm and state-of-the-art motor system not only match the look and features of Dayton Audio's Reference Series woofers and midranges, but also the clean, detailed, and uncolored sound you have come to expect. A specialized damped rear chamber, well-designed phase bridge, rigid mesh grill, and several distortion-reducing paths in the motor 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" aluminum diaphragm offers remarkable clarity without the typical harshness of metal domes
• Exceptional efficiency at 92.5 ±3dB from 1.5 kHz to 19 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 = 1500-20000 Hz
  • resonance frequency fs = 775 Hz
  • impedance R = 4,0 Ohm
  • sound pressure level SPL = 92,5 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 = 0,93 (Qms=2,15, Qes=1,65)
  • 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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