RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker - Dreamedia AV
RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker - Dreamedia AV
RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker - Dreamedia AV
RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker - Dreamedia AV
Vendor: RBH Sound

RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker

In-ceiling speaker with AMT technology

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RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker

Elevate Your Home Theater Experience

Imagine stepping into a room where the sound envelops you from above, filling the space with crystal-clear audio that transports you right into the heart of your favorite movie or symphony. The RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker is designed to turn that vision into a reality, offering an immersive audio experience that rivals even the most prestigious movie theaters.

Unrivaled Audio Quality

Crafted with precision and care, the RBH Sound SI-815/RL is not just a speaker; it's an auditory masterpiece. Its high-end components, including an 8-inch aluminum cone woofer and an advanced AMT tweeter, work in harmony to deliver:

  • Deep, Resonant Bass: The 8-inch woofer ensures a powerful and dynamic low-end response, creating a solid foundation for all types of audio.
  • Crisp, Clear Highs: The AMT tweeter, a cutting-edge technology known for its responsiveness and clarity, offers an extended frequency range up to 40kHz.
  • Broad Dispersion: The pivoting tweeter can be directed towards the listening area for optimal sound staging, ensuring every seat is the best seat in the house.

Seamless Integration

The RBH Sound SI-815/RL is designed to blend into your home decor with ease. Its installation features and design elements include:

  • Invisible Aesthetics: With paintable frames and grilles, the speaker can be customized to match your ceiling, becoming virtually invisible.
  • Flexible Mounting Options: Whether you prefer a round or square grille, in white or black, the choice is yours, ensuring a perfect match for any room.
  • Magnetic Grilles: Snap on the grille effortlessly, thanks to the magnetic design that also allows for easy removal when needed.

Advanced Design & Installation

Installing the RBH Sound SI-815/RL is straightforward, thanks to its thoughtful engineering:

  • Dog-Leg Mounting System: This reliable mounting method simplifies the installation process, saving you time and hassle.
  • Built-in 15-Degree Angle: The speaker's design includes an angled mount, allowing for more directed sound and enhanced audio dynamics.

Technical Specifications at a Glance

  • Speaker Type: In-ceiling
  • Speaker Design: 2-way
  • Frequency Response: 45Hz-40kHz ± 3dB
  • Sensitivity: 91dB
  • Recommended Power: 50-200 Watts
  • Impedance: 8 Ohms
  • Crossover Frequency: 2700 Hz
  • Crossover Slope: 18dB/Octave

High-Performance Features

The RBH Sound SI-815/RL is packed with features that enhance your listening experience:

  • Tweeter Protection: A self-resetting poly-switch guards the tweeter against damage.
  • Crossover Network: A meticulously designed crossover ensures seamless integration between the woofer and tweeter.
  • Compatibility: Timbre-matched with other RBH Sound Signature Series speakers for a cohesive sound system.
  • Sonics: Engineered to complement the acoustics of RBH Sound Signature series products perfectly.

Exceptional Versatility

Whether you're looking to create an enveloping Dolby Atmos setup or simply want high-fidelity music throughout your home, the RBH Sound SI-815/RL is versatile enough to meet your needs:

  • Dolby Atmos Ready: Ideal for use as overhead speakers, they bring the latest in cinematic sound technology to your home.
  • Music & More: These speakers aren't just for movies; they're equally adept at delivering the nuances of your favorite classical piece or the beats of a rock concert.

Peace of Mind

With RBH's reputation for quality and a 10-year limited warranty, you can rest assured that your investment is protected for years to come.

What's Included

  • RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker
  • Magnetic Grille (in your chosen shape and color)
  • Installation Manual

Why Choose the RBH SI-815/RL?

  • High-Quality Construction: Built with premium materials for lasting durability and exceptional sound.
  • Customized Sound: Pivoting tweeter and adjustable tweeter control tailor the audio to your space.
  • Easy Installation: Dog-leg mounting system and detailed manual make setup a breeze.
  • Seamless Appearance: Paintable grille and frame allow for a flawless look in any room.
  • Comprehensive Warranty: A 10-year limited warranty offers peace of mind and assurance of quality.

Your Home Theater Partner

At Dreamedia, we're not just about selling speakers; we're about creating experiences. Our team is ready to help you design the home theater system of your dreams, ensuring that the RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker is integrated perfectly into your space for the ultimate audio experience.

Take the Next Step

Elevate your home theater with the RBH Sound SI-815/RL Signature 2-Way in-Ceiling Speaker. With its superior sound quality, elegant design, and effortless installation, it's the choice for audio enthusiasts who demand the best. Contact Dreamedia today, and let us help you bring the concert hall and movie magic into your home.

Our Review

RBH Sound SI-815/RL Signature 2-Way In-Ceiling Speaker Review


The modern home theater landscape is an ever-evolving environment where the quest for unobtrusive yet high-performance audio solutions has led to the rise of in-ceiling speakers. RBH Sound, a respected name in the audiophile community, continues this trend with its SI-815/RL Signature 2-Way In-Ceiling Speaker. Part of the acclaimed Signature Series, this model promises to deliver an immersive listening experience while blending seamlessly into the aesthetics of your home.

Design and Build Quality

Aesthetics and Integration

The SI-815/RL is designed with an eye for subtlety and discretion. The paintable frame and grille allow for customization to match any interior design, ensuring that the speaker can be as prominent or as hidden as the owner desires. This capacity for visual harmony is a strong point for homeowners and designers alike who prioritize the visual integrity of their spaces.


The use of high-grade materials like an aluminum cone for the woofer and a silk dome for the tweeter speaks to RBH's commitment to quality. These choices not only contribute to the speaker's durability but also play a critical role in its sound reproduction capabilities. The rigid yet lightweight nature of aluminum allows for precise and dynamic bass response, while the delicate properties of silk ensure that the highs are rendered with clarity and finesse.


Speaker Configuration

The 2-way speaker system, which includes an 8-inch woofer paired with a 1-inch tweeter, is a classic arrangement that has stood the test of time. The incorporation of AMT (Air Motion Transformer) tweeter technology is a standout feature. This advanced tweeter design is known for its ability to move air with greater efficiency and speed, resulting in a more detailed and dynamic high-frequency response.

Installation Ease

RBH's dog-leg mounting system facilitates a straightforward installation process. While handy homeowners may find this to be a DIY-friendly feature, those less acquainted with audio equipment installation may opt for professional help to ensure the best acoustical placement and secure mounting.

Compatibility and Versatility

The SI-815/RL is timbre-matched to integrate sonically with other speakers in the RBH Sound Signature Series, which is vital for creating a coherent and immersive audio landscape. Additionally, its suitability for Dolby Atmos setups allows users to experience the pinnacle of surround sound technology, with overhead audio that brings a three-dimensional quality to the home theater experience.

Special Features

The adjustable tweeter control is a thoughtful inclusion that empowers users to fine-tune the sound dispersion to match their room's acoustics. The pivoting tweeter further enhances this capability, allowing for targeted audio delivery that can mitigate challenging room dynamics.


Sound Quality

RBH Sound's SI-815/RL Signature speaker does not disappoint when it comes to sound quality. Across the frequency spectrum, the speaker exhibits a balanced and accurate sound profile. The crossover network plays a pivotal role in this, ensuring that low and high frequencies are directed to the appropriate drivers, thus minimizing distortion and phase issues.

Customization Options

The adjustable tweeter control is not merely a token feature; it has a tangible impact on the listening experience. It allows users to compensate for less-than-ideal room acoustics or personal preference biases, making it a valuable tool for audio enthusiasts. The pivoting tweeter's ability to direct the sound more precisely adds another layer of customization, which can significantly enhance the clarity and detail of the audio in certain listening positions.

Home Theater Integration

In a surround sound configuration, the SI-815/RL Signature demonstrates its true potential. When paired with other RBH Sound Signature Series speakers, it creates a seamless and enveloping soundstage that can rival commercial cinemas. This synergy is especially important for discerning listeners who demand consistency in their audio experiences.

Installation and Setup

Mounting Procedure

The installation of the SI-815/RL can be approached methodically. The dog-leg mounting system requires precise cutting of the ceiling material, but once the opening is made, the speaker locks into place with a reassuring firmness. Ensuring that the speaker is mounted away from obstructions and at the correct angle relative to the listening area is crucial for optimal sound performance.


Proper calibration is key to unlocking the full potential of the SI-815/RL. This includes setting the correct crossover points and adjusting the tweeter level to integrate smoothly with the rest of the system. For users who are not technically inclined, a professional installer can not only handle the physical installation but also take care of the calibration process, using sophisticated equipment to dial in the best possible sound for the room.

Comparison with Competitors

The RBH Sound SI-815/RL holds its ground firmly when pitted against other in-ceiling speakers in its class. Its use of premium materials, advanced tweeter technology, and compatibility features set it apart from many alternatives. While some competitors may offer similar specifications, the RBH's attention to detail and sound quality often tips the scales in its favor for those who prioritize audio performance.

User Experience

Everyday Use

For the everyday user, the SI-815/RL offers a blend of high-fidelity sound and unobtrusive design. The maintenance is minimal, and the sturdy construction promises longevity. However, the potential difficulty in auditioning these speakers before purchase due to their niche placement in the market can be a hurdle for some.


While the RBH Sound SI-815/RL excels in many areas, it is important to note that it may not be the best fit for every situation. The necessity of ceiling installation means it's not suitable for transient living situations, and the cost of professional installation should be considered when calculating the total investment.

Final Thoughts

The RBH Sound SI-815/RL Signature 2-Way In-Ceiling Speaker stands out as a compelling option for those looking to integrate high-quality audio into their homes without compromising on aesthetics. Its combination of superior sound quality, ease of installation, and the ability to customize the audio experience make it a strong contender in the premium in-ceiling speaker market. While it may present some challenges in terms of installation and initial setup, the auditory rewards for the discerning listener are well worth the effort. The RBH Sound SI-815/RL is a testament to the brand's reputation for crafting speakers that offer both value and outstanding performance.

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