DAYTON AUDIO RS28AS-4 Dome Tweeter Speaker 1-1/8

( Brand: Dayton Audio ), ( Manufacturer Part Number: RS28AS-4 ), ( Compatible Brand: Universal ), ( Type: Tweeter ), ( Unit Type: Unit ), ( Size: 1 1/8 ), ( Country Of Origin: China )

Review DAYTON AUDIO Reference Series 1-1/8 Inch Aluminum Dome Tweeter Ohm Speaker

The **Dayton Audio RS28AS-4 1-1/8" Dome Tweeter** is a precision-engineered, high-performance component designed to deliver exceptional clarity, detail, and dynamic range in any high-end audio system. Part of Dayton Audio s renowned RS series, this tweeter combines advanced materials and meticulous craftsmanship to produce an immersive listening experience with remarkable accuracy and extended high-frequency response. Featuring a **1-1/8" (28mm) soft-dome driver**, this unit is optimized for smooth, natural sound reproduction across a wide frequency range, making it an ideal choice for both home audio and professional applications. The tweeter employs a **high-tensile aluminum basket** for structural integrity and durability, while its **high-efficiency, low-distortion voice coil** ensures minimal power handling requirements, allowing for efficient operation even in systems with modest amplification. The **butterfly-shaped soft dome** is crafted from high-quality, temperature-stable materials, ensuring consistent performance and longevity without the risk of distortion or fatigue. With a **nominal impedance of 4 ohms** and a **sensitivity of 92 dB/W/m**, this tweeter excels in both bookshelf and center-channel configurations, delivering crisp treble with remarkable depth and precision. Whether integrated into a custom-built system or paired with a high-end crossover, the RS28AS-4 elevates audio fidelity, revealing intricate details in vocals, instruments, and ambient soundscapes with unmatched clarity. Its compact yet robust design makes it a versatile addition to any speaker setup, ensuring a seamless transition from midrange to ultra-high frequencies with minimal crossover artifacts. For audiophiles and sound engineers seeking a tweeter that balances performance, reliability, and aesthetic appeal, the Dayton Audio RS28AS-4 stands as a standout choice.

### Pros and Cons of buying a Dayton Audio RS28AS-4 1-1/8" Dome Tweeter Speaker

1. **High-Quality Sound Reproduction** The RS28AS-4 is designed with a high-performance aluminum dome tweeter, which delivers crisp, detailed high-frequency response with minimal distortion. This makes it suitable for audiophiles and systems requiring accurate sound reproduction.

2. **Wide Frequency Range** With a frequency response extending down to 1,500 Hz (when paired with a suitable crossover), this tweeter excels in reproducing midrange and upper-midrange frequencies, filling in gaps where smaller tweeters might fall short.

3. **Durable Construction** Dayton Audio is known for building rugged, long-lasting components. The RS28AS-4 features a sturdy magnet structure and a reinforced dome, reducing the risk of damage from handling or high SPL (sound pressure levels).

4. **Versatile Mounting Options** The tweeter comes with a standard 1-1/8" binding post, making it compatible with most speaker systems. It can be used in bookshelf, floor-standing, or powered speaker setups, depending on the application.

5. **Good Efficiency** The RS28AS-4 provides adequate sensitivity (around 95 dB/W/m), meaning it can produce strong output without requiring excessive power, which is beneficial for smaller systems or portable applications.

6. **Minimal Coloration** Unlike some tweeters that introduce unwanted resonance or harshness, the RS28AS-4 offers a neutral sound signature, making it a reliable choice for critical listening environments.

7. **Affordable for Its Class** Compared to some high-end tweeters, the RS28AS-4 offers excellent value for its performance, making it a practical choice for enthusiasts who want quality without breaking the bank.

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1. **Limited Low-End Extension** As a dome tweeter, the RS28AS-4 is not designed to handle deep bass frequencies. It requires a crossover to protect it from low-frequency distortion, which may limit its use in full-range speaker applications without additional woofers.

2. **Not Ideal for High-SPL Applications** While durable, the RS28AS-4 is not optimized for extreme sound pressure levels (e.g., concert PA systems or high-power car audio). It may require additional damping or heat management in high-output scenarios.

3. **Size Constraints** The 1-1/8" size means it may not fit in compact speaker enclosures or systems with limited space. Larger tweeters (e.g., 2" or 2.5") might be more suitable for smaller cabinets.

4. **Requires Proper Crossover Design** To avoid distortion, the RS28AS-4 needs a well-designed crossover network to protect it from low-frequency energy. Poor crossover design can lead to harshness or reduced lifespan.

5. **No Built-in Protection** Unlike some tweeters with built-in thermal or mechanical protection, the RS28AS-4 relies on external safeguards (e.g., crossover design, amplifier protection) to prevent damage from overloading.

6. **Sound Signature May Not Suit All Tastes** While the tweeter is neutral, some listeners may find its high-frequency response slightly bright or require EQ adjustments to achieve their preferred sound.

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The Dayton Audio RS28AS-4 1-1/8" dome tweeter is a well-rounded, high-quality component that excels in midrange and high-frequency reproduction. It is ideal for audiophile systems, bookshelf speakers, or applications where accurate sound and durability are prioritized. However, it is not a full-range tweeter and requires proper crossover protection to function optimally. Its performance is best suited for systems where it is paired with appropriate woofers and midrange drivers.

If you are building or upgrading a speaker system that requires a reliable, midrange-to-high-frequency driver with a neutral sound and good durability, the RS28AS-4 is an excellent choice. It is particularly well-suited for:

- Bookshelf or floor-standing speaker setups.

- Audiophile applications where detail and accuracy are important.

- Systems where the tweeter is paired with a dedicated woofer and crossover.

However, if you need a full-range tweeter or plan to use it in high-SPL environments (e.g., car audio or live sound), consider alternatives like the Dayton Audio RS28AS-2 (2" dome) or other high-efficiency tweeters designed for those applications. Always ensure your crossover and amplifier are properly matched to protect the tweeter from damage.

Details:

1 used speaker in nice working order. Tuned rear chamber and high-quality Fourfold for excellent low-end response. Low-distortion motor system achieves a rare level of transparency. Exceptional efficiency at 92.5 3dB from 1.5 kHz to 19 and a smooth frequency response.

Well- designed phase bridge to balance the response in upper octave. Matches the performance of even most expensive Audiophile high-frequency transducers. Product highlights: 1-1/8 aluminum diaphragm offers remarkable clarity without the typical harshness of metal domes.

part #: rs28as4 prices

• $109.98-$179.98

specifications speakerpartgo:

• brand: Dayton Audio
• mpn: Rs28as-4
• compatible brand: Universal
• type: Tweeter
• unit type: Unit
• size: 1 1/8
• country of origin: China

general speakerpartgo:

• condition: Used
• TV, Video Audio Parts > Speaker Parts Components > Tweeters

returns speakerpartgo:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted
• method: Money back

offer speakerpartgo:

• best offers: True
• availability: In Stock
• quantity: 1
• sold: 0
• options: Ship-to-home
• started: March 28, 2026

seller speakerpartgo:

• rating: 99.8%
• # reviews: 28604
• city: Windsor Locks, Connecticut

shipping speakerpartgo:

• transit: 4-9 Days
• service: USPS Ground Advantage
• carrier: USPS
• cost: $17.80
• class: Standard
• type: Calculated

payments speakerpartgo:

• other
• credit card: Visa
• wallet: Google-pay

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