RBH SI-1212/9 - Dreamedia AV
RBH SI-1212/9 - Dreamedia AV
RBH SI-1212/9 - Dreamedia AV
Vendor: RBH Sound

RBH SI-1212/9

In-ceiling/in-floor subwoofer with self-resetting protection

RBH Sound Authorized Dealer

Need Help?

We're here to help. Call or chat with a Dreamedia specialist.

Free Shipping

Free nationwide shipping available!*

Free Returns

30 day guarantee.
RBH SI-1212/9

Unveiling the RBH SI-1212/9: The Invisible Maestro of Bass

In the world of home theater, the quest for a powerful audio experience often leads to a compromise between aesthetics and performance. Enter the RBH SI-1212/9, a subwoofer that refuses to make that compromise. This marvel of acoustic engineering is designed to deliver earth-shaking bass while remaining virtually invisible within your living space. Let's embark on a journey to discover how this exceptional piece of technology can transform your auditory experience without altering your home's aesthetic.

Seamless Integration Into Your Home

The RBH SI-1212/9 is not just a subwoofer; it's a chameleon. Crafted for those who appreciate the finer details, it's designed to be concealed between ceiling or floor joists. This subwoofer plays its powerful symphony through an ordinary heating vent, ensuring that your décor remains untouched while your ears revel in the depth of sound.

  • Disguised Appearance: The unit mimics the look of an HVAC vent, allowing it to blend seamlessly with your home environment.
  • Hidden Installation: Perfectly nestled within the architecture of your space, the SI-1212/9 is the ideal choice for a clutter-free audio setup.

Exhilarating Sound Performance

The RBH SI-1212/9 doesn't just hide well—it performs spectacularly. With dual 12-inch aluminum cone drivers, the subwoofer delivers a bass that is as precise as it is powerful. The frequency response dips down to an impressive 20Hz when paired with a DA Series Amplifier, enveloping you in a sound that's not just heard, but felt.

  • Deep Bass Extension: With a frequency response reaching as low as 20Hz, the SI-1212/9 captures the full spectrum of bass notes, ensuring that every explosion and bass riff is delivered with cinematic fervor.
  • Powerful Drive Units: The twin 12" drivers push the boundaries of bass performance, creating an immersive audio experience that will be the envy of audiophiles.

Optimal Power and Precision

To achieve its full potential, the SI-1212/9 should be paired with a capable amplifier. RBH's own DA-1202 or DA-1802 subwoofer amplifiers are not just recommended; they are the perfect partners for this subwoofer, providing the power and control needed to unleash its true capabilities.

  • Amplifier Compatibility: The RBH DA-1202 or DA-1802 are the recommended powerhouses to drive this subwoofer, ensuring a synergy that results in optimal performance.

Advanced Protection for Longevity

The inclusion of self-resetting protection circuitry means that you can push the SI-1212/9 to its limits without fear. This smart feature safeguards the subwoofer against potential overdriving, preserving its life and your peace of mind.

  • Smart Protection Circuitry: Automatically prevents damage to the subwoofer by moderating input levels, guaranteeing longevity and consistent performance.

A Commitment to Quality

RBH stands behind the SI-1212/9 with a 10-year limited warranty, a testament to the confidence they have in their product's durability and performance. You can enjoy the heart-pounding bass with the assurance that your investment is secure.

  • Extended Warranty: A 10-year limited warranty reflects RBH's commitment to quality and customer satisfaction.

Tailored for the Discerning Ear

Whether you're a cinephile, a music enthusiast, or someone who enjoys the occasional escape into the auditory realm, the SI-1212/9 is designed to meet and exceed your expectations. Its ability to deliver deep, definitive bass without any visual footprint makes it an unparalleled choice for those who seek the best in both performance and design.

  • Ideal Application: From home theaters to listening rooms, the SI-1212/9 is versatile enough to enhance any space where sound quality cannot be compromised.

Effortless Installation

Dreamedia is here to take the guesswork out of installation. We understand the intricacies of home theater systems and are ready to design a setup that incorporates the RBH SI-1212/9 seamlessly into your space. Our experts are just a consultation away from helping you achieve the perfect balance of form and function.

  • Dreamedia Expertise: With our knowledge and experience, we ensure that your subwoofer is installed with precision, optimizing its performance and integration.

Your Music, Your Movies, Elevated

Imagine the thrum of a double bass or the impact of an action movie's climactic scene delivered with a clarity and depth that resonates within your very core. The RBH SI-1212/9 makes this a reality. Its performance is not just an enhancement to your audio experience—it's a revolution.

  • Unmatched Audio Experience: The SI-1212/9 elevates your favorite movies and music to new heights, providing a sensory experience that will leave you awestruck.


The RBH SI-1212/9 is a testament to the belief that high-fidelity sound should be heard and not seen. It's a subwoofer that respects the design of your home while delivering an audio experience that captivates and enthralls. With Dreamedia's expertise, integrating this exceptional subwoofer into your home theater system is effortless and rewarding. Embrace the invisible maestro of bass, and let the RBH SI-1212/9 transform your home into a sanctuary of sound.

The SI-1212/9 is a 12-inch non-powered subwoofer designed specifically to be installed in between ceiling or floor joists. The subwoofer plays into the room through an ordinary heating vent and is the perfect subwoofer for home theaters, listening rooms, or anywhere strong, definitive bass is needed without being seen. Self resettinge protection circuitry is incorporated to prevent damage to the subwoofer if it is ever overdriven. We recommend using the RBH DA-1202 or DA-1802 subwoofer amplifiers for powering this subwoofer.

Our Review

Coming Soon!.


General Specifications

  • Series: Signature Series
  • System Type: Sealed, in-floor, in-wall, in-ceiling subwoofer
  • Drive Units: (2) 12" (305mm) Aluminum Cone
  • Frequency Response: 27Hz-150Hz (±3dB)
  • Frequency Response with DA Series Amplifier: 20Hz-150Hz (±3dB)
  • Sensitivity: 90 dB (2.83 V @ 1 Meter)
  • Recommended Power: 600-1200 Watts
  • Impedance: 4 Ohm
  • Cabinet Material: High Density Fiberboard (HDF)
  • Cabinet Color: Black Paint
  • Baffle Opening Dimensions: 12" W x 6" H (305mm W x 152mm H)
  • Finished Dimensions: 13-1/2” x 56” x 9” (335 x 1423 x 229mm)
  • Weight: 85 lbs. (38.55 kg)
  • Warranty: 10 year limited

Design & Installation

  • Installation Type: Designed for installation between ceiling or floor joists
  • Grille Options: Heat Vent (in-floor), Cold-air Return (in-ceiling)


  • Placement Flexibility: Yes
  • Room Integration: Plays into the room through an ordinary heating vent
  • Protection Circuitry: Self-resetting protection circuitry to prevent damage from overdriving
  • Application Versatility: Ideal for home theaters, listening rooms, or any space where powerful bass is required without being visible


  • Recommended Amplifiers: RBH DA-1202 or DA-1802 subwoofer amplifiers

Trusted by over
5,500+ customers