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PEX Dayton Audio RST28A 4 1 1/8" Reference Series Aluminum Dome Tweeter 4 Ohm P10185671PEX-275-131 https://cdnimages.opentip.com/full/PEX/PEX-275-131.jpg Dayton Audio RST28A 4 1 1/8" Reference Series Aluminum Dome Tweeter 4 Ohm Manufacturer Part Number: RST28A-4The Dayton Audio RST28A-4 1-1/8\" aluminum 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 RS28A-4 provides incredible performance at an amazing value.Key Features: 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 Dayton Audio RST28A-4 1-1/8\" Reference Series Aluminum Dome Tweeter 4 OhmThe 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 numberProduct Details BrandDayton Audio ModelRST28A-4 Part Number275-131 UPC848791004896 Unit of MeasureEach Weight1.8 Product Specifications Cone / Dome Diameter1.125\" Cutout Diameter2.875 Tweeter TypeMetal Dome Power Handling (RMS)80 Watts Impedance4Ω Frequency Response1,500 to 20,000Hz Sensitivity92.5dB 2.83V/1m Thiele-Small Parameters Resonant Frequency (Fs)775Hz DC Resistance (Re)3Ω Voice Coil Inductance (Le)0.03mH Mechanical Q (Qms)2.15 Electromagnetic Q (Qes)1.65 Total Q (Qts)0.93 Mounting Information Overall Outside Diameter4.125\" Depth1.75\" 10185671 848791004896 2.1600lbs 0.00 0.00 0.00
Dayton Audio
41.98 2025-04-25 70 In Stock

Dayton Audio RST28A-4 1-1/8" Reference Series Aluminum Dome Tweeter 4 Ohm

Brand Dayton Audio
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UPC: 848791004896
SKU: PEX-275-131
Price:
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Product Description

Manufacturer Part Number: RST28A-4

The Dayton Audio RST28A-4 1-1/8" aluminum 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 RS28A-4 provides incredible performance at an amazing value.

Key Features:
  • 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


Dayton Audio RST28A-4 1-1/8" Reference Series Aluminum 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.

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

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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