Dayton Audio Rst28a-4 1-1/8" Reference Series Aluminum Dome Tweeter 4 Ohm

SKU: PXP-275-131
  • 1-1/8" aluminum diaphragm offers remarkable clarity without the typical harshness of metal domes
  • Exceptional efficiency at 92.5 ±3 dB 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
Unit Price
US$ 50.57
US$ 54.99
US$ 50.57
US$ 54.99
US$ 50.271%
US$ 50.091%
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Unit of Measure
Power Handling (RMS)
80 Watts
Dayton Audio RST28A-4 Spec Sheet
Dayton Audio Manufacturer Warranty

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.

For applications like line arrays or compact mini-monitors that demand a smaller faceplate, an optional is available.
For the replacement diaphragm, see part number

Shipping specs
1.8 lbs
5.5" x 0" x 1.75"
Shipping from
This product is shipped from our supplier's warehouse in Springboro, OH, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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