RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound

RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)

RBH Sound

Quantity

Price

$11,945.00

Quick answers from real humans

Expert help

877-417-9000 Hannah

Description

Unmatched Power and Precision
The RBH Sound UNRIVALED 21-SF/R Subwoofer takes bass to the next level—deep, powerful, and felt as much as it’s heard. With cutting-edge design and engineering, it delivers breathtaking low-end impact that transforms music, movies, and gaming into a fully immersive experience.

Only Gear We’d Put in Our Own Setups

60-Day Hassle-Free Returns

Real support from real humans in the USA

RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)

    $11,945.00

    Need Help Deciding?

    Authorized Dealer

    Product Features

    Free Shipping Nationwide
    No Hassle 30 Days Return
    Price Assurance
    Dream Team
    Preferred Installers

    Description

    Unmatched Power and Precision
    Get ready to feel your audio. The RBH Sound UNRIVALED 21-SF/R isn’t just a subwoofer—it’s an experience. With a massive 21-inch carbon fiber driver, this powerhouse delivers bone-rattling bass, incredible dynamics, and jaw-dropping depth that brings movies, music, and games to life.

     

    Engineered for Impact
    Built with premium materials, advanced DSP control, and a 4,000-watt Class-D amplifier, the 21-SF/R combines raw power with precision tuning. From thunderous lows to tight, clean mid-bass, every detail is engineered for accuracy, clarity, and pure performance.

     

    Crafted to Last
    Featuring a reinforced cabinet, acoustic damping system, and customizable finishes, the 21-SF/R is as durable as it is stunning. Whether you want reference-level cinema bass or audiophile-grade depth, this subwoofer is the centerpiece your system deserves.

     

    Key Features

    • 21-inch carbon fiber driver with 38mm Xmax
    • 4,000-watt Class-D amplifier with DSP control
    • Frequency extension down to 10Hz
    • Reinforced, acoustically optimized cabinet
    • Custom finish options for any room
    General Specifications
    ModelUNRIVALED 21-SF/R
    TypeUltimate Subwoofer System
    ApplicationSuitable for both movies and music listening
    OutputTight and accurate
    ConstructionBuilt with the highest quality materials
    Manufacturer CollaborationPierce Audio
    Manufacturing LocationHand-built in the Pacific Northwest since 2004
    InnovationGroundbreaking low-distortion design
    PerformanceCapable of extracting every ounce of performance
    ResilienceEngineered for high quality and resilience
    UsageSuitable for most any application
    Driver Specifications
    Size21 inch
    MaterialCarbon fiber cone
    FeaturesMassive cast aluminum basket Half-roll rubber surround 38mm Xmax (one-way linear travel) 50mm Xmech (one-way mechanically limited travel) Eight neodymium slugs for the magnet Magnetic flux of 35 Tesla Meters 4
    HDF)
    Dimensions43

    Reviews

    There are no reviews yet.

    Be the first to review “RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)”

    Your email address will not be published. Required fields are marked *

    Watch It in Action

    See All
    Recommended Gear

    Complete Your Setup

    Curated products to complete your setup.

    SVS Soundpath Tri-Band Wirless Audio Adapter

    SVS Soundpath Tri-Band Wirless Audio Adapter

    $199.99

    InfoDiscontinued
    SVS Soundpath Tri-Band Receiver

    SVS Soundpath Tri-Band Receiver

    $99.99

    InfoAdd to Cart
    Marantz SR7015 AV Receiver

    Marantz SR7015 AV Receiver

    $1,899.00

    InfoDiscontinued
    Marantz SR6015 AV Receiver

    Marantz SR6015 AV Receiver

    $1,599.00

    InfoDiscontinued
    Marantz SR5015 AV Receiver

    Marantz SR5015 AV Receiver

    $999.00

    InfoDiscontinued
    Dreamedia Gold Theater Package

    Dreamedia Gold Theater Package

    $20,460.20

    InfoCall to Purchase

    Customer Support Module

    Free Shipping on Most Orders

    60-Day Hassle-Free Returns

    Expert Support via Text or Chat — Anytime

    Pro Audio Gear Curated by Home Theater Specialists

    Book a Consultation

    Fast and Simple

    30K+

    Happy Customers

    100% Expert-Curated Gear

    We hand-pick every product based on real-world performance — no guesswork, no filler.

    We design, build, and use home theaters ourselves.

    We’re not just a store — we’re fans, builders, and listeners too.

    "Seen Zach on Youtube and loved his enthusiasm for home theater. For years my AV equipment has been housed on an old TV stand looking real "jankey". Seen..."... click to read more
    Bram Hechtkopf
    "I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
    ★★★★★
    Bram Hechtkopf
    Marlon Simon
    "I'm in the process of building a home theater as a DIY project. I was..." ... click to read more
    ★★★★★
    Marlon Simon
    C dawg swizzle
    "Bought a complete home system including a 75” QLED TV. Zach and his brother..." ... click to read more
    ★★★★★
    C dawg swizzle
    Ronald Palermo
    "I purchased the sonos one enclosure to use in my bathroom ceiling, works great and..." ... click to read more
    ★★★★★
    Ronald Palermo
    Alvin Ellis
    "David was Great! He walked we through every step of my purchase and has followed..." ... click to read more
    ★★★★★
    Alvin Ellis
    Dee Gates
    "If you’re ever in the need for home media, this is the place. Every single..." ... click to read more
    ★★★★★
    Dee Gates
    Matthew Sherrick
    "I couldn't be happier with Zach and everyone at Dreamedia! I became familiar with..." ... click to read more
    ★★★★★
    Matthew Sherrick
    Susan Ott
    "We found Chace to be highly proficient at his trade. He has been professional..." ... click to read more
    ★★★★★
    Susan Ott
    BJ Broderick
    "I’ve followed Dreamedia on YouTube for many years and have also had family members buy..." ... click to read more
    ★★★★★
    BJ Broderick
    Artie Trotter
    "Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
    ★★★★★
    Artie Trotter
    Deepankar Biswas
    "Zach and his brother did an awesome job. They were punctual and installation was..." ... click to read more
    ★★★★★
    Deepankar Biswas
    Alarick Wright
    "I had planned to order a pair of Perlisten R5Ms, but got a great deal..." ... click to read more
    ★★★★★
    Alarick Wright
    Bram Hechtkopf
    "I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
    ★★★★★
    Bram Hechtkopf
    Marlon Simon
    "I'm in the process of building a home theater as a DIY project. I was..." ... click to read more
    ★★★★★
    Marlon Simon
    C dawg swizzle
    "Bought a complete home system including a 75” QLED TV. Zach and his brother..." ... click to read more
    ★★★★★
    C dawg swizzle
    Ronald Palermo
    "I purchased the sonos one enclosure to use in my bathroom ceiling, works great and..." ... click to read more
    ★★★★★
    Ronald Palermo
    Alvin Ellis
    "David was Great! He walked we through every step of my purchase and has followed..." ... click to read more
    ★★★★★
    Alvin Ellis
    Dee Gates
    "If you’re ever in the need for home media, this is the place. Every single..." ... click to read more
    ★★★★★
    Dee Gates
    Matthew Sherrick
    "I couldn't be happier with Zach and everyone at Dreamedia! I became familiar with..." ... click to read more
    ★★★★★
    Matthew Sherrick
    Susan Ott
    "We found Chace to be highly proficient at his trade. He has been professional..." ... click to read more
    ★★★★★
    Susan Ott
    BJ Broderick
    "I’ve followed Dreamedia on YouTube for many years and have also had family members buy..." ... click to read more
    ★★★★★
    BJ Broderick
    Artie Trotter
    "Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
    ★★★★★
    Artie Trotter
    Deepankar Biswas
    "Zach and his brother did an awesome job. They were punctual and installation was..." ... click to read more
    ★★★★★
    Deepankar Biswas
    Alarick Wright
    "I had planned to order a pair of Perlisten R5Ms, but got a great deal..." ... click to read more
    ★★★★★
    Alarick Wright
    Why Choose Us?

    Why Thousands Trust Dreamedia

    Trusted by thousands for our service and expertise

    Reviews

    30M+ VIEWS ON YOUTUBE

    Most of our customers discover us through our videos — and stay for the experience.

    15+ YEARS OF INDUSTRY EXPERTISE

    Helping families and businesses build the perfect home theater since day one.

    NATIONWIDE INSTALLATIONS & PERSONAL SUPORT

    From coast to coast — with real humans, not scripts.

    4.9/5 CUSTOMER RATING

    We’re proud of the trust we’ve earned. Just check the reviews.

    Reviews

    Reviews

    Excellent

    Reviews

    ★★★★★

    Fast & Excellent

    "Best in the business! While researching home theater equipment and options, I watched all of..."

    Jeremy McCurdy
    ★★★★★

    Excellent Service

    "I wanted to take a minute to share my excellent experience with Dreamedia Home Theater...."

    Shawn Goldstein
    ★★★★★

    Amazing Quality

    "Very friendly staff. Unbeatable pricing."

    walter ellington

    FAQ

    Have more questions?
    Reach out any time

    How long are the lead times on orders?

    Lead times generally take 3-5 days to ship and arrive. However, there are several items that may have unique ordering and freight conditions that vary.

    Do you offer in-depth consultations?

    Yes! You can schedule a free consultation under our Contact page.

    Do you offer bundles?

    We have bundles that can be a one size fits most. However, we would prefer to schedule a consult to talk through your exact project. Determining what is best for your space, timeline and budget.

    Can you install my system?

    Depending on location, there is a good chance one of our preferred partners can do the installation. We have over 20+ installers in our network across the country.