RST28A-4 1-1/8" Reference Series Aluminum Dome Tweeter 4 Ohm
1-1/8" aluminum diaphragm offers remarkable clarity with
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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.
(848791004896)
• 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
| Speaker Series | Reference Series |
|---|---|
| Model Number | RST28A-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791004896 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Product Shipping Weight (lbs.) | 1.8000 |
| Speaker Type | Tweeter |
| Nominal Diameter | 1.125" |
| Power Handling (RMS) | 80 watts |
| Power Handling (max) | -- |
| Continuous Program Power | -- |
| Impedance | 4 ohms |
| Sensitivity | 92.5 dB @ 2.83V/1m |
| Frequency Response | 1,500 - 20,000 Hz |
| Voice Coil Diameter | -- |
| Magnet Weight | -- |
| DC Resistance (Re) | 3.0 ohms |
| Voice Coil Inductance (Le) | 0.03 mH |
| Resonant Frequency (Fs) | 775 Hz |
| Mechanical Q (Qms) | 2.15 |
| Electromagnetic Q (Qes) | 1.65 |
| Total Q (Qts) | 0.93 |
| Diaphragm Mass Inc. Airload (Mms) | -- |
| Moving Mass Of Diaphragm (Mmd) | -- |
| Mechanical Compliance of Suspension (Cms) | -- |
| Surface Area Of Cone (Sd) | 6.6 cm² |
| Volume of Displacement (Vd) | -- |
| BL Product (BL) | -- |
| Compliance Equivalent Volume (Vas) | -- |
| Maximum Linear Excursion (Xmax) | -- |
| Driver's Mechanical Losses (Rms) | -- |
| Entry / Exit Diameter | -- |
| Surround Material | -- |
| Voice Coil Wire Material | -- |
| Voice Coil Former | -- |
| Basket/Frame Material | -- |
| Magnet Material | -- |
| Overall Outside Diameter | -- |
| Overall Depth | -- |
| Baffle Cutout Diameter | -- |
| Mounting Hole Diameter | -- |
| Bolt Circle Diameter | -- |
| Product Weight | -- |
| SKU | 848791004896 |
| Model # | RST28A-4 |
| Barcode # | 848791004896 |
| Shipping Weight | 0.7770kg |
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