RBH Sound

RBH Sound SI-663/R Complete Set

RBH Sound

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$2,895.00

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Description

RBH Sound SI-663/R In-Wall Speaker
Experience home theater that pulls you into the action. With precision engineering and immersive audio, the SI-663/R delivers powerful, high-fidelity sound while blending seamlessly into your walls.

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RBH Sound SI-663/R Complete Set

$2,895.00

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Description

RBH Sound SI-663/R In-Wall Speaker
Turn your living room into a true theater with the RBH SI-663/R. Designed for audiophiles, this in-wall powerhouse delivers cinematic sound without taking up space. From subtle whispers to explosive action, every detail is clear, dynamic, and immersive.

 

Precision Engineering, Superior Sound
Featuring three 6.5-inch aluminum woofers and dual AMT tweeters, the SI-663/R covers an impressive 50Hz–40kHz range with stunning accuracy. Its high-density fiberboard cabinet reduces resonance, while optional grille finishes keep your setup sleek and discreet.

 

Flexible Performance, Seamless Fit
Whether you need a discrete center channel or a full front sound stage, the SI-663/R adapts to your system. With multiple wiring options, easy in-wall installation, and timbre-matching with RBH’s Signature Series, it’s built for custom theaters and serious listening spaces.

 

Key Features

  • 3 x 6.5″ aluminum woofers + 2 x AMT tweeters
  • Frequency response: 50Hz–40kHz (±3dB)
  • Handles up to 450W combined power
  • Flexible dual or single channel configuration
  • High-density fiberboard in-wall cabinet
  • Optional black or white grille finishes
  • 10-year limited warranty
General Specifications
Speaker TypeIn-wall
SeriesSignature Reference Series
Speaker Configuration3-way
Frequency Response45Hz - 20kHz (±3dB)
Impedance4 ohms
Power Handling200 watts
Sensitivity89dB
Recommended Amplifier Power50-200 watts
Crossover Frequency2500Hz
Enclosure TypeSealed
Enclosure MaterialMDF (Medium-Density Fiberboard)
Mounting Depth3.5 inches (8.89 cm)
Cutout Dimensions (H x W)27.5 x 8.75 inches (69.85 x 22.23 cm)
Overall Dimensions (H x W)29.5 x 10.75 inches (74.93 x 27.31 cm)
Weight40 lbs (18.1 kg)
Driver Components
Woofer6 ½ inches aluminum cone
Tweeter1 inch silk dome
Number of Woofers3
Number of Tweeters3
Features
Tweeter ProtectionYes
Crossover Slope12dB/Octave
Can Serve as Center ChannelYes
Can be Wired for Dual-Channel OperationYes
Suitable for Amplifiers50 to 200 watts
Grille OptionsBlack or White Fabric
Installation
Internal BracingYes
DampingWell-damped
Installation Pre-DrywallYes
Mud-Ring for Drywall InstallationYes
Performance
Exceptional Music ReproductionYes
High Dynamics and SoundstageYes
Natural and Immersive SoundYes

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Introduction

The RBH Sound SI-663/R is an in-wall speaker designed specifically for use in surround sound systems. It offers high-quality audio performance and can be used as a standalone center channel or in conjunction with other SI-663 units. Its in-wall design allows for a discreet and space-saving installation, making it an ideal choice for those looking to maintain a clean and clutter-free home theater setup.

Design and Installation

The RBH Sound SI-663/R's in-wall design is a standout feature, offering a space-saving solution that helps avoid clutter in your home theater. By installing the speaker directly into the wall, you can seamlessly integrate it into your room design without sacrificing valuable floor space. However, it's important to note that in-wall installation may require professional assistance, especially for those without prior experience in wiring and mounting speakers. Weighing in at 55 lbs, the SI-663/R is not the lightest speaker on the market. This weight, coupled with the complexity of in-wall installation, means that extra care and attention should be taken during the setup process. It's advisable to seek professional assistance to ensure a proper and secure installation.

Audio Performance

One of the key factors to consider when choosing an in-wall speaker is audio performance, and the RBH Sound SI-663/R does not disappoint in this regard. It offers high-quality sound reproduction, delivering immersive and dynamic audio that enhances your home theater experience. Users have praised the SI-663/R for its ability to reproduce sound with clarity and precision, creating a lifelike and engaging listening experience. The SI-663/R is part of the RBH Sound Gold LCR series, which has garnered a positive reputation among users over the years. This series is known for its exceptional audio performance and the SI-663/R maintains that standard. The speaker's timbre-matched design ensures consistent sound quality when combined with other RBH Sound Signature Series in-wall and freestanding models, allowing for a cohesive and balanced audio experience. The SI-663/R features three 6.5-inch metal cone woofers and two 1-inch silk dome tweeters, providing a well-rounded frequency response and accurate sound reproduction. It is specifically designed to serve as front left or right speakers in a home theater system, delivering clear and detailed audio for your favorite movies, TV shows, and music.

Unique Features and Benefits

One of the standout features of the RBH Sound SI-663/R is its ability to eliminate the need for a dedicated center channel. When used in pairs, the SI-663/R can provide discreet center channel audio from the left and right front speakers. This is particularly useful in installations where a center channel cannot be used or is intentionally removed, allowing for greater flexibility in speaker placement and room design. By wiring the SI-663/R in the standard configuration with three units, you can create a seamless front sound stage. This configuration enables discrete left, center, or right channels, ensuring a cohesive and immersive audio experience. Whether you're watching an action-packed movie or listening to your favorite music, the SI-663/R offers a seamless integration of sound that enhances the overall enjoyment of your entertainment. In addition to its performance benefits, the SI-663/R also offers customization options for room design and speaker placement. Its in-wall installation allows for a clean and integrated look, blending seamlessly with your room decor. The speaker can also be wired for dual-channel operation or standard configuration, providing flexibility in setup to suit your specific needs and preferences. The SI-663/R also offers the option of black-anodized woofers, which can help reduce light reflections in certain room environments. This feature is especially beneficial for those who have windows or other light sources near their home theater setup, ensuring that the focus remains on the immersive audio experience without any distracting reflections.

Limitations and Considerations

One limitation to consider when evaluating the RBH Sound SI-663/R is its limited availability for demo. As the buyer has not had the opportunity to experience the product firsthand, it may require additional effort to assess its performance and suitability for specific needs. While the positive reputation of the RBH Sound Gold LCR series provides some assurance, it's always preferable to have a personal experience with the product before making a final decision. It's important to note that the SI-663/R is optimized for installations where a center channel is intentionally removed or cannot be used. While this configuration offers flexibility and customization options, it may not be the ideal choice for those who require a traditional center channel speaker in their surround sound setup. The SI-663/R's specific use case may limit its suitability for all types of installations and design requirements. Another consideration is the SI-663/R's in-wall installation requirement. While this design allows for a discreet and space-saving solution, it may not be preferable for those who prefer freestanding or bookshelf speakers. In-wall installation can be more complex and may require professional assistance, especially for those without prior experience in wiring and mounting speakers. It's important to factor in the additional effort and expertise required when considering the SI-663/R for your home theater setup.

Conclusion

The RBH Sound SI-663/R offers a high-fidelity solution for custom installations where a dedicated center channel cannot be used or is intentionally removed. Its in-wall design provides a space-saving and discreet solution that can be seamlessly integrated into different room designs. With its high-quality audio performance, customizable wiring options, and timbre-matching capabilities, the SI-663/R delivers a dynamic and immersive listening experience. However, it's important to consider the limitations and specific use case of the SI-663/R. It may not be suitable for all surround sound setups or design requirements, and its in-wall installation requirement may pose challenges for those who prefer freestanding or bookshelf speakers. Additionally, the limited availability for demo may require additional effort to assess its performance before making a final decision. Overall, the RBH Sound SI-663/R is a well-regarded in-wall speaker that offers flexibility, high performance, and a seamless integration into your home theater setup. If you have a custom installation where a dedicated center channel is not feasible or intentionally removed, the SI-663/R may be the perfect choice to enhance your audio experience.
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