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Dayton Audio RST28F-4 1-1/8" Reference Series Fabric Dome Tweeter with Truncated Faceplate

Dayton Audio
Part #275-144

Dayton Audio RST28F-4 1-1/8" Reference Series Fabric Dome Tweeter with Truncated Faceplate

Dayton Audio
Part #275-144  
The Dayton Audio RST28F-4 1-1/8" silk dome Reference Series tweeter has remarkable clarity, low free air resonance, exceptional efficiency, and smooth frequency response, a combination seldom found in the industry at any price. This upgrade over the original RS28F-4 provides incredible performance at an amazing value. The included truncated faceplate allows for tighter spacing between the tweeter and woofer/midrange drivers.
Key Features
  • 1-1/8" silk diaphragm offers excellent damping and remarkable clarity
  • Perfect for line arrays or mini-monitor designs
  • Exceptional efficiency at 93.5 ±3 dB from 1.4 kHz to 20 kHz for extremely accurate response
  • Well-designed phase bridge to balance the response in the upper octave
  • Tuned rear chamber and high-quality Ferrofluid for extended low-end response
  • Matches the performance of even the most expensive audiophile high-frequency transducers
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MSRP: $64.99
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Overview

Dayton Audio RST28F-4 1-1/8" Reference Series Fabric Dome Tweeter with Truncated Faceplate

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. The included truncated faceplate makes the RST28F-4 ideal for deigns like line arrays or compact mini-monitors that demand a smaller faceplate, or any situation where you want to keep center-to-center distances as small as possible.

For the replacement diaphragm, see part number 275-143


Product Details

BrandDayton Audio
Part Number275-144
UPC848791007255
Weight1.85

Product Specifications

Cone / Dome Diameter1.125"
Cutout Diameter2.875
Tweeter TypeSoft Dome
Power Handling (RMS)80 Watts
Impedance
Frequency Response1,400 to 20,000Hz
Sensitivity93.5dB 2.83V/1m

Thiele-Small Parameters

Resonant Frequency (Fs)710Hz
DC Resistance (Re)
Voice Coil Inductance (Le)0.03mH
Mechanical Q (Qms)2.52
Electromagnetic Q (Qes)1.46
Total Q (Qts)0.92

Mounting Information

Overall Outside Diameter4.125" x 3.25"
Depth1.75"

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